Points to remember for best outcomes in Summer Vacations Maintain social distancing, no touch concept and use of Mask during outdoor visit. Do regular hand wash with soap or sanitize with alcohol based sanitizer. Eat healthy food for better health and avoid packed, junk, fast food and unhygienic market drinks. Try to consume seasonal and citrus fruits to

boost immunity. Watch knowledgeable T.V. Channels like Discovery, Animal planet, BBC Earth, Epic program channels. Make habit of morning walk and try to understand ‘Value of Nature’. Engage yourself in constructive work like cooking, playing, gardening, learning new things during vacations. Your holiday Homework should be in separate notebook with labelled project work before submission. Utilize your precious time to do revision according to given holiday homework. Submit your weekly homework to respective teacher. Prepare your subject for First Periodic Test. Feel free to contact your teacher for any query or doubts related to subject.

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Dear Parents/Students, Summer vacations will start from 10th May, 2021 to 31st May, 2021.

CLASS – 11th - Science

Subject Homework

English

Two lessons of snapshot Two lessons of Hornbill 1st poem Learn format of article writing

Physics

Q.1:- Two trains A and B are moving on parallel tracks with velocities of 60km/h and 90km/h,respectively, but in opposite directions. Find (a) the relative velocity of train A with respect to train B and (b) the relative velocity of ground with respect to train A. Q.2:- A car at rest accelerates uniformaly to a speed of 144km/h in 20s. How much distance is covered by the car?

Q.3:- An electron is emitted with a velocity of 5x106m/s. It is accelerated by an electric field in the direction of initial velocity at 3x1014m/s2. If its final velocity is 7x10m/s,calculate the time taken by the electron to attain the final velocity and the distance covered by it. Q.4:- A stone is thrown vertically upward with an initial velocity of 14m/s. Find the maximum height reached and the time of ascent. Q.5:- On a foggy day , two car drivers spot each other , when thay are just 80m apart. They are traveling in opposite directions at 72km/h and 60km/h, respectively. Both of them simultaneously apply brakes, which retard both the cars at a rate of 5m/s2. Determine whether they avert the collision or not. Q.6:- An athlete runs a distance of 1500m in the following manner (a) starting from rest he accelerates himself uniformaly at 2m/s2 till he covers a distance of 900m.(b) he then runs the remaining distance of 600m at the uniform speed developed . Calculate the time taken by the athlete to cover the two parts of the distance covered. Also, find the time , when he is at the centre of the track. Q.7:- A body covers 4m in third second and 12m in fifth second. If the motion is uniformaly accelerated how far will it travel in the next 3second. Q.8:- A parachutist bails out from an airplane and after droping through a distance of 40m, he open the parachute and decelertates at 2m/s2. If he the ground with a speed of 2m/s, how long does he float in the air? At what height did he bail out from the plane? Q.9:- A car moving along a straight highway with speed of 120km/h is brought to stopwithin a distance of 200m. What is the retardation of the car and how long does he take for the car to stop. Q.10:- A body is moving with velocity 30m/s towards east. After 10s, its velocity becomes 40m/s towards north. The average acceleration of the body is (a) 5m/s2 (b) 1m/s2 (c) 7m/s2 (d) none.

Q.11:-A bus is moving with a speed of 10m/s on a straight road. A scooterists wishes to overtake the bus in 100s. If the bus is at a distance of 1kmfrom the scooterist, with what speed should the scooterist chases the bus? (a) 40m/s (b)25m/s (c)10m/s (d)20m/s. Q.12:- A partical starts its motion from rest under the action of a constant force. If the distance covered in first 10s is S1 and that covered in the first 20s is S2, then (a)S2 = 3S1 (b) S2 = 4S1 (c) S2=S1 (c) S2 = 2S1. Q.13:- A particle moves along a circular path with constant speed. What is the nature of its acceleration? (a) it is zero (b) it is uniform (c) its direction changes (c) its magnitude changes. Q.14:- If a man goes 10m towards north and 20m towards east, the displacement is- (a) 22.5m (b)25m (c)25.5m (c) 30m. Q.15:- The velocity of a body at the end of 4s is 26m/sand at the end of 12s is 58m/s and at the end of 22s is 98m/s. The body is moving with- (a) uniform velocity (b) uniform speed (c) uniform acceleration (d) uniform displacement. Q.16:- A body moves along a straight line, covers half time journey with a velocity of 18m/s and remaining half time with a velocity of 27m/s. The average velocity is (a) 24m/s (b) 20m/s (c) 22.5m/s (d) 30m/s. Q.17:- The ratio of the numerical values of the average velocity and average speed of a body is always- (a) unity (b) unity or less (c) unity or more (c) less than unity. Q.18:- The distance traveled by a moving train in the first, second and third seconds are 20m, 15m and 10m respectively. It means that- (a) the train is decelerating (b) the initial velocity of the train is 20m/s © the constant deceleration of the train is 5m/s2 (d) the constant deceleration of the train is 10m/s2.

Chemistry Learn chapter- 1 Complete the notebook( notes,NCERT intext question and exercise question)

Biology Learn chapter biological classification and plant kingdom (till Algae). Complete notebook (notes, ncert exercise, intext questions n assignment )

Maths Sets Relations & Functions Worksheet of Sets

Mathematics

Mathematics

Biology

Biology Second Week Home Work