View
10
Download
3
Category
Preview:
Citation preview
POST CLASS NOTES
Light – Reflection and Refraction
Topics
1. Reflection of Light
∠ ∠
∠ ∠
2.Spherical Mirrors
FC CF
PFC
ir
P CF
ir
PFC
ir
P CF
ir
PFC P CF
PFC
ir P CF
ir
3. Image Formation by Spherical Mirrors
PFC PFC
PFC PFC
PFC FC P
P CF P CF
4. Mirror Formula
→
→
→
m =h′
h= −
v
u
→
→
PB’X‘ XP
M
N
A’
1
v+1
u=1
f
5. Refraction
Normal Incident ray
Refracted
ray
i
r
𝑠𝑖𝑛 𝑖
𝑠𝑖𝑛 𝑟= 𝑐𝑜𝑛𝑠𝑡𝑎𝑛𝑡
𝑛𝑚 =𝑐
𝑣𝑚𝑛21 =
𝑣1𝑣2
6. Lenses
C1 F1 F2 C2O C1 F1 F2 C2O
C1 F1 F2 C2 C1 F1 F2 C2
C1 F1 F2 C2 C1 F1 F2 C2
O O
OO
7. Image Formation by Lenses
C1 F1 F2 C2O
C1 F1F2 C2O
C1 F1F2 C2O
C1 F1 F2
C2O
C1 F1F2 C2O C1 F1
F2 C2O
8. Lens Formula and Magnification
9. Power of a Lens
P = P1 + P2 + P3 + ...
P =1
Focal length in metres , f
1
f
1u
1v
- =hi v
ho
=u
m =
1
𝑣+1
𝑢=1
𝑓
𝑚 =ℎ′
ℎ= −
𝑣
𝑢
sin 𝑖
sin 𝑟= 𝑐𝑜𝑛𝑠𝑡𝑎𝑛𝑡
𝑛𝑚 =𝑐
𝑣𝑚
𝑛21 =𝑣1𝑣2
1
𝑣−1
𝑢=1
𝑓
𝑚 =ℎ′
ℎ=𝑣
𝑢
𝑃 =1
𝑓
Important Formulae
∠i = ∠r
𝟏
𝒗+𝟏
𝒖=𝟏
𝒇
𝒎 =𝒉′
𝒉= −
𝒗
𝒖
𝐬𝐢𝐧 𝒊
𝐬𝐢𝐧 𝒓= 𝒄
𝒏𝒎 =𝒄
𝒗𝒎
𝒏𝟐𝟏 =𝒗𝟏𝒗𝟐
𝟏
𝒗−𝟏
𝒖=𝟏
𝒇
𝒎 =𝒉′
𝒉=𝒗
𝒖
𝑷 =𝟏
𝒇
Mind Map
Recommended