1. The motion is said to be _____________ if the axis of the frame of reference of object remains always parallel to the corresponding axes of observer frame of reference.a) Rotatory b) oscillatory c)translatory d)simple harmonic

2. Every point of the spinning object moves along an arc of circle in a point of spinning object moves along an arc of a circle in a small interval of time and this straight line is known as ……………………a) Moment arm b) axis of couple c) axis of rotation d)frame of reference

3. Which of the following is(are) are the examples of spin motion .I) Daily rotation of earth about own axis. II) Rotation of fly feel about it axis.III) Rotation of top. IV) Motion of planets around sun.a) IV only b) I & II only c)I,II,III only d) I,II,III & IV.

4. Torque which produces a counter-clockwise rotation is considered to be _________ and that producing a clock wise rotation is taken as __________.a)negative, positive b) positive, negative c) negative, negative d)positive, positive

5. Which of the following is (are) examples of dynamic equilibrium___________.I) Downward motion of small steel ball through viscous liquid II) jumping of paratrooper from an helicopter III) a book lying on table IV)building and bridges a) I and IV b)II &III c)I& II d)I,II & IV

6. The dimension of angular momentum is ______________a)ML2T b)ML2T-2 c)MLT-2 d) LM-1T2

7. When skater wants to increase it rotation then __________a)he must pull his hand and feet away from his body b)He must reduces his weight c) he must pull his hand and feet close to his body d) a torque must be applied

8. which of following property must have the forces which form a couple I) these have same magnitude II) these cannot be replaced by single force III)their line of action is different IV) these produce no linear acceleration a) I & III only b)I & III only c)II & III only d)I,II,III & IV

9. a particle of mass 0.3kg moves in xy plane. At the instant its coordinates are (2,4)m its velocity is (3i+4j) m/s. At this instant the angular moment of particle relative to the origin is _________a) -1.2j J.s b) -1.2i J.s c)-1.2k J.s d)840 J.s

10. a particle of mass 400 gram rotates in a circular orbit of radius 20cm at a constant rate of 1.5 revolution per second, then the angular momentum of the particle with respect to the centre of orbit is ___________a) 0.006 J.s b) 0.15 J.s c)720 J.s d)400 kg m2/sec )

11. A particle of mass 4 kg moves along the x-axis with a speed v=15t m/s, where t=0, is the instant that particle is at the origin, at t=2 the angular moment of the particle about point P located on y- axis , 6m from the origin is _______a) 720 kg m2/sec b)360 kg m2/sec c)12.5 kg m2/sec d)400 kg m2/sec

12. A 45 kilogram girl is sitting on a see saw 0.6m from the pivoted point, how far from the other side, should a 60kg body sit so that see saw will remains in balance.a)0.3m b)0.35m c)0.4m d)0.45m

13. A skater extends her arms, holding a 2kg mass in each hand. She is rotating about a vertical axis at given rate. She bring her arms inward towards her body in such a way that the distance of each mass from the axis changes from 1m to o.5 mm. her ate of rotation will _______

a) Be doubled b)be halved c) be quadrupled d)be quarter14. Which of the following is(are) examples of uniform circular motion ____________.

I) Fly wheel rotating about own axis II) Rotation of moon around the earth III) Rotation of earth IV) lawn move blades a)IV only b)I & III only c)I,II,III & IV d)I,II and IV only.

15. The object initially is at point P1 on the circumference of circle, after a small interval of time, it moves to the position P2, angle P1OP2 is known as __________

a) Arc length b)Axis of rotation c) Angle of motion d)Angular displacement 16. 10= __________

a) π/360o b)360/π c) 2π/60 d)2π/18017. one rpm=______

a) 2π/60 rad s-1 b) 60/2π rad s-1 c)0.0017 rad s-1 d) 57.3 rad s-1

18. A particle is moving in a circular path, then the product of distance of particle from the axis of rotation and angular velocity is known as _______a)Angular speed b) frequency c) angular momentum d tangential velocity

19. The acceleration produce by virtue of changing direction of a body moving in a circular path is known as ______a)Angular speed b) tangential acceleration c) centripetal acceleration d) linear acceleration

20. The equation X=Vox t and Y=Voyt -1/2 gt2 are independent of description of motion but both depends up on common variable t, such equation are known as _________.a) Equation of motion b) parametric equation c) parabolic equation d)equation of projectile

21. In projectile motion the vertical component of acceleration is equal to _________a) Zero b) a=-g c) a=-1/2g d) a=g

22. Small angles produces________ trajectory and the large angles produces ___________ trajectory.a)Flat, low b) high , low c) flat , low d) high, low.

23. . which of the following is (are) example of projectile motion .I) object thrown from window II)A missile shoot from a gun III)A bomb released from bomber Plane IV) Jumping animalsa)I & III only b)II & III only c)I & IV only d) IV only

24. for maximum range , the factor sin2Ɵ must be equal to _________.a)45o b) 9oo c)0 d)1

25. the range of the projectile depends upon ________I)square of velocity II)sin of twice of the projection angle III) mass of projectile IV)angle of projectile a) I & II only b)I,II and IV only c)I,II,III & IV d) I only

26. projectile will cover half of maximum range with less time interval when it is fired at __________

a) 300 b)600 c)150 d)750 e) both a&d27. at of launch angle of 45o, the range of projectile is given by __________

a)Vi2/g b) 2Vi

2/g c)√V 2/g d)2Vi/g28. a projectile is launched at an angle to the horizontal with an initial velocity V. in the absence of air resistance , which of

the following statements is (are) correct _________a)horizontal V increase b)horizontal V remains constant c) horizontal V decrease d)vertical acceleration decrease

29. A rescue helicopter drops a package of emergency ration to a stranded party on the ground. If the helicopter is travelling horizontally at 40m/s at a height of 100m above the ground, the package strikes the ground relative to the point at which it was released .a)40m b)50m c)180m d)90m

30. A boy throws a ball with a speed of 9.8m/s upward, if ball is fall back at the same height where from it was released then the maximum distance between the projection point and landing point is __________a)9.8m b)4.9m c)98m d)19.6m

31. a projectile is launched from level ground with a velocity of 100 m/s at an angle of 300 to the horizontal . if air resistance is neglected , approximately how will projectile rise .a) 50m b)125m c)250m d)98m

32. An object is launched from the ground with an initial velocity and angle such that the maximum height achieved is equal to the total range of the projectile . the tangent of the launch angle is equal to ________a)1 b)2 c)3 d)4

33. A car is travelling on a flat circular track of radius 2oom if the co-efficient of friction is o.8 then its maximum speed at which the car can circle the track is _________a)4500m/s b)2.9m/s c)39.6m/s d)15m/s

34. A 200gram ball is held to the end of a cord and whirled in a horizontal circle of radius o.6m. if the ball makes five complete revolution in 2 sec, then tension in cord is __________a)9.42N b)148N c)29.6N d)200N

35. The S.I unit of momentum is __________a)kgm.s-2 b)N.s c)J.s d)kg m s

36. if there is no external force applied to a system, then the total momentum of system remains constant before and after collision . this is known as __________I)Newton’s 2nd law of motion II) Newton’s 1st law of motion III) law of conservation of momentum IV)Newton’s law of inertia a)I & II b) I & IV c)III only d)II only

37. when a body is on the point of sliding then the friction is said to be _______________a) kinetic friction b) static friction c)sliding friction d) limiting friction

38. the ratio of limiting friction to normal reaction acting between two surfaces in contact is known as ________a)contact force b)co-efficient of friction c)angle of friction d)mass of surface

39. when spheres are moving in fluid , these experience a retarding force that is given by __________a)F=rv b)F=6πnrv c)F=6πnrv2 d)F=6πnr2v

40. when a block sides down with an acceleration a from an inclined plane, which is inclined at angle Ɵ, then resultant force is given by __________a)ma=w cosƟ – f b) w sinƟ= ma –f c) ma= wsinƟ- f d) f= wsinƟ+ ma

41. the speed of an object at the ends of 4 successive seconds are 20,25,30 and 35 m/s respectively . the acceleration of this object is ________a) 5m/s2 b)10 m/s2 c)20m/s2 d)2.5m/s2

42. a bomb is dropped from an air plane moving horizontally with a speed of 20km/h. if air resistance is negligible the bomb will reach the ground in 5 second when the altitude of the plan is approximately _________a)50m b)75m c)250m d)125m

43. a ball is droped from a top of tower, if it takes 5 sec to hit the ground , then height of the tower is _______a) 49m b)122.5m c)198m d)150m

44. a 100grams bullet is fired from a 10kg gun with a speed of 1000 m/s , then the speed at which gun recoil is ______a)5m/s b)20m/s c)10m/s d)100m/s

45. A helicopter weighs 3920N, if it is ascending up at a rate of 2m/s2 then the force on it ____________a)3920N b)800N c)1600N d)4720N

46. a truck starts from at the top of a slope which is 1m high and 49m long, the speed of truck at the bottom is _______a)o.2m/s b)4.4m/s c)5.6m/s d)8.8m/s

47. a bullet having a mass o.oo5kg is moving with a speed of 1oom/s . it penetrates into a bag of sand and is brought to rest after moving 25cm into the bag, the average retarding force on bullet is _________a)1oN b)o.1N c)1N d)100N

48. a car starts from rest and moves with a constant acceleration . during 5th second of its motion it covers a distance of 36m, the acceleration of car is __________a)12.5m/s2 b)20m/s2 c)8m/s2 d)20m/s2

49.. a car of mass 1oookg travelling at a speed of 36km/h is brought to rest over a distance of 20m , the average retardation force is _________a)1oN b)2.5N c)25ooN d)1oooN

50.a particle moves along x-axis subject to the following position given by X(t)= 2t2+3t-1 the average speed after 3 second is _________a)2m/s b)3.3m/s c)5m/s d)8.3m/s

51. An object has an initial velocity of 15m/s, how long must it accelerated at a constant rate of 3m/s2 before its average velocity is equal to twice of its initial velocity.a)5sec b)10sec c)15 sec d)25 sec

52. a ball is dropped from rest at a height of 5om above the ground. The speed just before it hits the ground is________a)2om/s b)31.3m/s c)3.19m/s d)49m/s

53. a car moving at 30m/s slows uniformly to a speed of 10m/s in a time of 5 second, if deceleration is uniform then distance it moves in the third second is ________________a)4m b)40m c)2m d)20m

54. the speed of a train is reduced uniformly from 15m/s to 7m/s while travelling a distance of 9om. How much farther will the train travel before coming to rest, provided the acceleration remains constant.a)20 b)115m c)25m d)75m

55. a car is accelerating uniformly as it passes two check points that are 30m apart. The time taken between checkpoints is 4s. and the cars speed at the first check point is 5m/s then speed at second check point is__________.a)3m/s b)8m/s c)13m/s d)10m/s

56. a 600kg car is moving on a level road at 30m/s how large retarding force is required to stop it in a distance of 70ma)390N b)3900N c)400N d)5000N

57. The magnitude of centripetal acceleration of moon is found to be__________a)2.72×10-3m/s2 b) 2.72×106m/s2 c) 3.84×108m/s2 d) 6.38×103m/s2

58. the average density of earth is ________________a)5.98×1024kg/m3 b) 5.98×1024kg/m3 c) 5.98×1024kg/m3 d) 5.98×1024kg/m3

59. the force with which the earth attracts the other body toward its centre is given by ____________a)F=MEm/RE

2 b) F=GMEm/RE c) F=GMEm/RE2 d) F=MEmRE

2/G60. if we go away from the surface of earth a distance equal to the radius of earth the value of g will becomes :

a)one fourth b)one eight c)one ninth d) one third 61. the sun exerts a force of attraction on the plants thus keeping them in their :

a)axis b)radii c)orbits d)state of motion 62. the gravitational attraction between two college students of mass 80 and 50kg respectively , 2m apart from each other

is__________a)3.62×10-47N b) 6.67×10-8N c) 6.67×10-15N d) 1.5×10-8N

63.A woman with a mass 45kg is standing on scale in an elevator , the elevator accelerator upward with a constant acceleration of 1.2m/s2 the woman’s weight as measured by her in the elevator .a)450N b)495N c)355N d)1000N

64. which of the following statement is (are) correct ________I) when elevator is rest or moving with uniform speed the apparent weight is equal to true weight.II) when elevator is ascending with a constant acceleration a , then apparent weight is greater than true weight.III) when elevator is descending with acceleration a , then apparent weight is greater than true weight.IV) when elevator is free fall the apparent is zero.a)I &II b)I,II & III c)II,III & IV d)I & IV

65. Another plant has half the mass of earth and half the radius, compare to acceleration due to gravity near the surface of earth , the acceleration due to gravity near the surface of this other plant is _________a)twice as much b)one fourth as much c)half as much d) same

66. the gravitational force between two masses is 36N, if the distance between masses is tripled the force of gravity will be_____________ a) same b) 18N c)9N d)4N

67. the force acting on satellite in circular orbit around earth in chiefly ______________a) the satellite’s inertia b) earth’s gravitational pull c) earth’s mass d) the satellite’s mass

68. what will be gravitational force between two objects if their product is doubled and distance is halved .a)decreased 2 times b) increased 16 times c)increased 8 times d)decrease 4 times

69. the weight of a body at the surface of earth is 500N, what will be its approximate weight at the surface of new plant’s surface whose mass is twice the mass of earth and it’s radius is 5 times the radius of earth.a)200N b)1000N c)100N d)250N

70. Which of the following statement is (are) correct__________I) Real images are always inverted with respect to object II) virtual images are always erect w.r.t object .III)Real image are formed back side of mirror IV) virtual images are formed back side of lens.a)III & IV only b) I & II only c)I,II & III only d)I,II,III & IV

71. A pair of lenses is in contact then their equivalent focal length is given by _________a) sum of the reciprocal of their individual focal length b)simply adding the individual focal lengths. c) reciprocal of the sum of reciprocal of their individual focal length d)multiplication of individual of their focal lengths

72. The fact that different wavelengths of light refracted by lens focus at different points give rise to __________I) chromatic aberration II) spherical aberration III) myopic IV) hyperopic a)II & III b)I & IV c) I only d)IV only

73. Which of following is (are) correct for a myopic eye (near sighted)_________I) myopic eye condition can be corrected with converging lens . II) Myopic eye is slightly longer than normal eye III) the myopic eye condition can be corrected with divergent IV) image of distant object forms in front of corneaa)I & II b)III c)I & IV d)I,II & III

74. a camera of 6cm focal length is used to photo graph a distant scene. The distance from the lens to image is approximately _________a)6cm b)1m c)80cm d)4cm

75. in an experiment, an object was placed on the principal axis of a convex lens 25cm away from lens, a real image 4 times the size of the object was obtained. The focal length of the lens was____________a)20cm. b)25cm c)33cm d)50cm

76. when a person uses a convex lens as a minifying glass, the distance that the object must be from the lens is _______a) less than focal length b)more than f but less than 2f c) more than 2f but less than 4f d) at least 4f

77. A 3cm tall candle is placed in front of a concave spherical mirror. An inverted image half the size of original is observed on a screen , where relative to the mirror must the candle have been placed __________a) at 2f b)beyond 2f. c)b/w f and 2f d)b/w f and the mirror

78. convex lens whose focal length is 20cm the specimen of Red Admiral butterfly is placed if its image is to be real one, three times as large as object then the specimen is _______________ far from the lens.a)20cm b)40cm c)26.66cm d)80cm

79. an object is placed at a distance of 60cm from a concave lens of focal length 30cm, position and nature of image is a) 20cm from lens, virtual and erect b) 1/3 cm from lens, virtual and erect c)16cm from lens, real and erect d)20cm from lens, virtual and inverted

80. a converging lens of focal length 20cm is placed in front of a converging lens of focal length 4cm. what is distance b/w the lenses if parallel rays entering the first lens leaves the second lens as parallel rays.a)28cm b)48cm c)8cm d)24cm.

81. an astronomical telescope of angular magnification 1000 has an objective of 15m focal length what is focal length of eye peace.a)15mm b)15cm c)8cm d)20mm

82. An astronomical telescope has an object lens whose power is 2 diopeters. This lens is placed 60cm from eye piece then angular magnification is _____________a)2 b)50 c)10 d)5

83. a lens is used to produce a sharp image on a screen . When the right half of the lens is covered with an opaque material, how will the image be affected__________.I) the right half image will disappear. II) The left half of image will disappear.III) The image size will become approximately half of original image IV) The image brightness become approximately half of the original brightness

a)I,II & III only b)I & III only c)II & IV only d) IV only 84. Which of the following is (are) phenomena explained on the basis of wave nature of light________.

I) emission II) photoelectric effect III) interference IV) diffraction a) I & II b)II & III c) III & IV d)II & III

85. Newton’s rings may be observed if you place a curve place a curved glass surface on a flat glass surface. A thin film of air is wedged b/w the glass surfaces. Looking down, you can see several rings around point where two glass surfaces touch. Newton’s rings are produced by ______________a)interference b)diffraction c)polarization d)absorption

86. if light of wave length 5×10-7m shines on a pair of slits 1mm apart, how far from the central maximum will the first bright band appear on screen 1 m away _____________a)5×10-4m b)5×10-10m c)2×103m d)2×10-4m

87. which of the following statement is(are) correct for young double slit experiment_________I) if the wave length of light increased, the distance b/w frings increases.II)if the distance b/w the two slits is decreased, the distance b/w fringes decreases.III)if white light is used , the central maximum is white.IV)if the distance b/w screen and slits is increased the distance b/w fringes increased.a)IV only b)I,II & III only c) II & IV only d)I,II,III & IV

88. diffraction of X-rays can be observed by using ___________I)young double slit experiment II) thin film III)diffraction grating IV)use of crystala)IV only b)I,II and III only c) III and IV only d)III only

89. which of following shows that light is transverse wave ____________ I) reflection II)diffraction III)interference IV) polarization a) I only b)II & III c)I,II & IV d)IV only 90. light cannot be polarized by _________________ I) reflection II)double refraction III) total internal reflection IV) scattering a)I only b)III only c) I & Iv only d)II only 91. in double slit experiment the separation of slits is 1.9mm and fringe spacing is 0.31mm at a distance of 1m from the slits ,

then wave length of light is ___________ a) 0.589×10-9m b)0.25×10-9m c)5.46×10-10m d)2.81×10-10m92. if a diffraction grating produce 1st order spectrum of light of wave length 6×10-7m at an angle of 200 from the normal. The

number of lines per mm is __________a)1.75×10-3 b) 5.7×102 c) 4000 d)8000

93. how many fringes will pass a reference point if the mirror of a Michelson;s interferometer is moved by o.o8mm, the wave length of light used is 5800oA.a)275 b)500 c)1000 d)5000

94. interference fringes were produced by two slits o.25mm apart on a screen 15omm from the slits. If eight fringes occupy 2.62mm. the wavelength of light is __________a)5.46mm b)5.46×10-6m c)5.46×10-3 d)5.46×10-9m

95. if the intensity of monochromatic light is increased while incident on a pair of narrow slits in diffraction experiment the spacing b/w maxima in the pattern will _________a) increase b) decrease c) increasing or decreasing d)cannot be decided

96. Which of the following is (are) present at the red end of the visible spectrum .I) slower wave at than at the violet II) lower energy quanta than at the violet end III) Longitudinal wave IV) longer wave length than at the violet end a)I,II & III b)I & II c)II & IV d)IV only

97. the principle of interference is necessary to explain adequately which of following ______I) the appearance of virtual image rather than real image in a plan mirror II)the product of green color of leaves III) the appearance of color in thin film IV) Produce of beats

a)I,II &III b)I,II,III & IV c)II,III & IV d)IV only 98. color in soap bubble are caused ___________

a)solely by pigment b) solely by reflection c)solely by absorption d)by interference 99. which of following properties when a beam of light goes obliquely from rarer to denser medium .

I)speed II) frequency III)wave length IV)amplitude a)I & II b) I & III c)I,III & IV d)IV only

100. In Young's double-slit experiment, two slits are 0.02 mm apart. The screen is located 1.80 from the source, and the third-order bright fringe is located 12.60 cm from the central fringe. Then distance between the first bright fringe and the third order bright fringe is .a) 4.3cm b)8.3cm c)1.3cm d)o.8cm

101. Two sources are said to be coherent. This means theya)are polarized. b) have the same amplitude. c) have different wavelengths.d) maintain constant phase with respect to each other. e) have different frequencies.

102. In double-slit interference pattern, destructive interference occurs when the path difference between two waves is a) even multiples of λ /2. b) odd multiples of λ /2. c) the same. d) even multiples of λ.

103. Light of wavelength λ = 500 nm falls on diffraction grating whose ruling produces spacing between the slits of 1× 10-5 m. How many principal maxima can be observed?a)5 b) 10 c)15 d)20 e)25

104. diffracting grating is used to determine the wavelength of light. In using the same grating, illuminated by red light compared to blue light, the angle for the first-order maxima:a) is equal for both red and blue light. b) is greater for red light than blue light.c) is smaller for red light than blue light. d) is independent of the wavelength of light. e) is independent of the frequency of light.

105. In order for two sound waves to produce beats, it is most important that two waves have …………..a) Same frequency b) same amplitude c) same number of overtones d) Slightly difference frequencies e) slightly difference in amplitude

106. A student wanted to make a pendulum whose time period would be 1second. He used a string of the length L and found that the period was ½ second. To get desired period he should use a string whose length equal to ….

a)1/4 L b) 1/2L c) 2L d) 4L e) L2

107. The a simple pendulum of length l and mass(bob) m is suspended vertically. The string makes an angle Ɵ with the vertical. The restoring force acting on the pendulum is

a) F=kx b) F=mgcosƟ c) F=mgsinƟ d) F=mg108. Find the time period of a simple pendulum whose length is 88.2cm the value of acceleration due to gravity is 9.8m/s2 at

the place where experiment is performed.a) 2sec b) 1.8 sec c) 5 sec d) 0.5 sec E) 4sec

109. The time of one vibration of a simple pendulum in a laboratory does not depend on ….a) Altitude of the laboratory b) the acceleration due to gravity in the laboratory c) The length of string d)mass of bob

110. Which of following statements concerning simple harmonic motion described below is (are) correct…..a) The maximum velocity and maximum acceleration occurs at the same timeb) The maximum velocity occurs when acceleration is minimum c) The velocity is always directly proportional to the displacement d) The maximum velocity occurs when the displacement is maximum e) N.O.T

111. A simple pendulum completes one oscillation in 2second, the length of simple pendulum is ………a) 2m b)4m c)0.99m d)5m e)2.5m

112. A body of mass 2kg attached to a spring is displaced through 0.04m from its equilibrium position and then released; if the spring constant is 200N/m then frequency will be ……

a) 0.628Hz b)1.57Hz c) 10Hz d)25Hz113. A string 2m long and mass of 0.004kg is stretched horizontally by passing end over pulley and attaching a 1kg mass to

it then frequency of fourth harmonic is …..a)70Hz b)35Hz c)140Hz d)200Hz

114. A spring 4m long resonates in four segments (node at both ends). The frequency of driving system on spring is 20Hz, and then speed of wave in spring is …..

a)20m/s b)40m/s c)10m/s d)5m/s115. Compute the wave length of wave transmitted by a radio station that board casts on an assigned frequency of

1000kHz.a) 150m b)250m c)100m d)200m

116. A standing wave is established in 120m long string fixed at both ends. The string vibrates in four segments when driven at 120Hz. The wave length is …..

a)7m b)10m c) 0.6m d)20m e) 5m117. The power transmitted by any harmonic wave is proportional to ……

(I) Square of frequency (II) square of amplitude (III) velocity (IV) distance from the source a) I and II only b) II and III only c) I,II and III only d)I,II,III and IV

118. The frequency of transverse wave depends up on ….(I) Inversely proportional to length (II)Inversely proportional to the square root of mass per unit length (III) Directly proportional square of amplitude (IV) directly proportional to square root of tension

119. ____________ are longitudinal waves with frequencies below 20Hz.a) Ultrasonic b) infrasonic c) audible d) infrared

120. The speed of sound depends up on ………….(I) Density of medium (II) elasticity of medium (III)temperature (IV) pressure a) I & III only b) III only c) I,II,III & IV only d) I,II,III & IV only

121. The magnitude of auditory sensation produced by sound is known as ……a) Loudness b) pitch c) intensity d) quality

122. This our common experience that sound of sparrow is shrill because of___________ Where as sound of lamb is grave due to__________.

a) High pitch & low frequency, low pitch & high frequency b)High pitch & low frequency, high pitch & high frequency c) High pitch & high frequency, low pitch & high frequency d)High pitch& high frequency, low pitch &low frequency

123. _________is characteristic of musical sound which enables us to distinguish between notes of same pitch and intensitya)quality b) loudness c) pitch d)noise

124. the amplitude of sound wave is determined as its_________a) Wave length b) frequency c)pitch d) resonance e) loudness

125. The pitch of sound___________as the car approaches but ________as it recedes.a) Remains same, increased b) increased, decreased c) remains same, decrease d) increased, decreased

126. The spectra from some star are shifted toward blue end, meaning that__________While the spectra from some stars are shifted toward red end meaning that___________

a) Approaching earth, approaching earth b) moving toward earth, approaching earth c) Emit more intense light , emit less intense light d)age of star deceasing, age of star increasing

127. Which of the following statements is(are) correct about transverse waves…a) Transverse waves can be polarized b) vibration are perpendicular to the direction of propagation c) Microwave are transverse b) transverse wave can be diffracted e) A.O.T

128. Which of following properties does NOT apply to sound .a) reflection b) refraction c)diffraction d) interference e) polarization

129. The lowest note that can be produced by a vibrating object is known as which of the following…..

(I) fundamental frequency (II) first overtone (III) first harmonic (IV) first basso a) I,II & III b)I &III only c) II & IV only d) IV only e)N.O.T

130. A sonar depth finder in a boat uses sound signals to determine the depth of water. Four seconds after the sound leaves the boat it returns to the boat because of reflection from the bottom assume the speed of sound in the water is 1460 m/sec, the depth of water is …….

a) 2200m b)4400m c)4800m d)2920m e)19200m131. a narrow cylinder with some water at bottom and an air column of length La if a tuning fork vibrating above the air

column, then the wave length of the fundamental frequency in air column is_________a)2La b)less than 2La c) 4La d) 6La e)3/2 La

132. When an open pipe is vibrating then which of the following is(are) true.(I) fundamental wavelength is equal to twice of length of pipe II) it only produce odd multiple of fundamental frequencies III)the frequencies of first, 2nd , 3rd overtone are (3f,5f,7f). IV)it only produce even multiple of fundamental frequency a)I,II and III only b) I & IV only c) I,III only d) I only e) N.O.T

133. While anchored at sea, a captain notices the wave peaks are separated by 16 m and occur at a rate of 1 wave every 2 seconds. What is the velocity of these waves?a) 4 m/s b) 8 m/s c) 16 m/s d) 32 m/s e) 64 m/s

134. 5kg and 10kg masses are hanged vertically downward with same type of spring then the ratio of time period of their oscillation is _________a) 2: 1 b) 1:2 c) 4:1 d) 4:1 e) √ 2:1

135. 4.0-kg mass hangs on spring and stretches it 0.05 m. The spring is then cut exactly in half. The same 4.0-kg mass, when hung on this new spring, will cause the spring to be stretched how far?a) 0.400 b) 0.020 c) 0.100 d) 0.025

136. the maximum speed of a particle in SHM is o.16m/s maximum acceleration is o.64m/s2.the amplitude is _____a)o.o4m b)o.4m c)4om d)4m

137. A particle executes S.H.M of amplitude A. at what distance from mean position its K.E is equal to its P.Ea)o.51A b)o.61A c)o.71A d)o.81A

138. Which of following is(are) the correct statement of sources of energy.(I) The source of solar energy is nuclear fission. II)The source of hydroelectric is the retain of river water III) source of fossil fuel is remnants of plants and animal IV)source of geothermal energy is nuclear fusion and fission.a) I,II &III only b) IV only c) II & III only d) III &IV only

139. Which of following is(are) examples of conservation of energy (I) In electric bulb: electrical energy=heat energy+light energy . II)fossil fuel: chemical energy= heat energy + losses.III) steam boiler : heat energy= mechanical energy + losses. IV)rubbing hands: mechanical energy =heat energy+ losses.a) I & III only b) II only c) I & II only d) I,II,III & IV

140. Which of the following is (are) the example of potential energy.(I) Work done in compressing the spring against the elastic force. II) electric charge is moved against electrostatic field (III) When a body is lifted to height against the gravitational force. IV)Work done by moving car against friction.a) I &II only b) IV only c) I & IV only d) I,II,III and IV

141. Which of the following is(are) the examples of kinetic energy .(I) Moving ball can break a glass window. II)A string hammer can drive a nail.(III) A stone thrown upward can lift itself. IV)A bullet can penetrate the bag of sand .a) I,II &IV b) I &II c) I,II,III & IV d) II &III

142. ½ horse power =…………a) 746 watt b) 373 watt c) 1055 watt d) 3.6*10-19 watt

143. Which of the following is not correct….a) I BTU=1055J b) 1ev= 1.6*10-19J c) 1KWh=3.6*106J d) 1Mev=1.6*10-13J e) N.O.T

144. Which of the following is (are) the example of negative work.(I) Stretching force , stretched the spring (II) lifting force lifts the object.

(III) Work done by friction force (IV) work done by normal force.a) I,II & III b)III only c) I & II only d) I,II,III & IV

145. A 70 kg man runs up a hill through a height a height of 3m in 2second, the average power output is….a) 2060 watt b) 2.1*106 watt c) 1030 watt d) 1000 watt

146. A 2000 kg car travelling at 20m/s comes to rest on a level ground at a distance of 100m. then average frictional force tending to stop it.

a)8000N b) 4000N c)2000N d)1000N147. The work done in holding a weight of 40N at a height of 3m above the floor for 2 second is ……..

a) 0 b)40 c)80 d)120 e)240148. A 40N object is lifted 10m above the ground and then released after the object has fallen 4m it kinetic energy will be

…..a) 5J b)160J c)240J d)400J E)5120J

149. An inclined plane 5m long has one end on the ground and other end on 3m high. A man weighing 650N wished to push a 900N object up this plane, the force of friction is 100N, the work done by man to move a box on the top of plane is..

a)3200J b)2700J c)500J d)2000J150. which of the following is(are) true of an object starting from rest and accelerating uniformly.

(I) It K.E is proportional to its displacement. (II) its displacement proportional to square root of velocity.(III) It K.E is proportional to the square of speed (IV) it velocity is proportional to the square of displacement.a) I,II & III b)I & II c) II & IV d)IV e)N.O.T

151. An advertisement claims that a certain 12ookg car can accelerate from rest to a speed of 25m/s in a time of 8s then average power must the motor produce to cause this acceleration is ___________

a)7895w b)46875w c)5000 d)2345w152. Which of the following objects would require the greatest amount of work to stop it?

a) an object of mass 3M and speed b) an object of mass 2M and speed c) an object of mass 3M and speed

d) an object of mass and speed e) an object of mass 4M and speed

153. block of mass moving with initial velocity is subjected to horizontal frictional force on rough surface. The coefficient of friction between the block and the surface is U , What distance does the block travel before completely coming to rest?

a) v/2ug b) v2/2umg c)v2/ug d)v/2umg154. which of the following is(are) correct__________

I)i×i=j×j=k×k=o II)i×j=j×k=k×i=1 III)i.i=j.j=k.k=1 IV)i.j=j.k=k.i=oa)I & IV b)II & III c)I & III d)III & IV

155. the projection of vector A=2i-3j|+6k onto the direction of vector B=i+2j+2k ___________a)8/3 b)3/8 c)4/5 d)5/4

156. the scalar product of (2i-j+3k).(3i+2j-k) is ___________a)o b)-6 c)1 d)3 e)-3k

157. a unit vector perpendicular to the plane containing vector A=2i-3j-k and B=i+4j-2k _________________a)10i/√ 230+3j/√ 230+15k/√ 230 b) 2i/√ 5+3j/√ 5+11k/√ 5 c)10i/√ 230+3j/√ 230+11k/√ 230 d) 2i/3+j/3+2k/3

158. two vectors A and B are such that |A|=3, |B|=4 and A.B=6 then angle between A and B is__________a)300 b)900 c)1200 d)600

159. the position vectors P and Q are given by r1=2i+3j-k, r2=4i-3j+2k then the magnitude of PQ vector is _____________a)4 b)2 c)-6 d)7

160. the law that governs that the sum of vectors remains same irrespective of any order is known as __________a)Associative law of vector addition b)commutative law of vector addition c)distributive law of vector addition d) closure law of vector addition

161. the unit vector parallel to vector A=3i+6j-2k is _____________

a)3i/7+6j/7-2k/7 b) i/7+3j/7-5k/7 c) i/3+j/3-k/3 d) 2i/3+5j/3+7k/3162. position of a given point P is specified w.r.t to the point O by mean of a vector having magnitude and direction is known

as a)free vector b)Null vector c)position vector d) unit vector

163. a vector which can be displaced parallel to itself is known as ___________a)free vector b)unit vector c)parallel vector d)position vector

164. If A.B=|A||B|, then _____________a)A is perpendicular to B b)magnitude of A is equal to B c) magnitude of A is one d)A is parallel to B

165. A=2i+3j-5k and B=2i+aj-k , the value of a=__________ so that vector A and B are perpendicular to each.a)3 b)2 c)-3 d)4 e)N.O.T

165. the dot product of vector A & B is 20. If A=2i+3j-k and B=2i+3j-bk the value of b is ____________a)20 b)13 c)7 d)12

166. the angle between vector A=2i+4j+2k and B=5i+j-7k is _____________a)00 b)120 c)600 d)300

167. the magnitude of resultant of two unit vector A and B is 1, then angle between A and B is ________a)900 b)00 c)600 d)1200

168. two vectors one is trice the magnitude of other and their resultant is 4 times the smaller vector the angle between these forces is ____________a)cos-1(0) b) cos-1(1) c) cos-1(1/4) d) cos-1(-2/3)

169. if Fx=4N and Fy=-4N then F makes ____________ angle with +x-axis .a)1800-tan-1(4/4) b) 2700-tan-1(4/4) c) 3600-tan-1(4/4) d) 1800-tan-1(4/4)

170. two equal magnitude vector having magnitude of 10 units one makes 300 with +x-axis and other makes 1500 with +x-axis then the magnitude of their resultant is ___________a)20 b)10√ 2 c)0 d)10

171. An airplane X starting from point A reaches point B which is at 400km then it turns left and reaches to point C which is at 3ookm from point B, the average speed of airplane is 10km/h at the same time another airplane moves and reach to point C in shortest distance from point A, the average speed of this airplane is _________ if both reaches a same time.a)10km/h b)7km/h c)20km/h d)5.55km/h