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प्रश्न
Fill in the blanks to complete the following sentence
The refractive index of glass with respect to air is 3/2. The refractive index of air with respect to glass will be ……………….
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उत्तर
The refractive index of glass with respect to air is 3/2. The refractive index of air with respect to glass will be 2/3
संबंधित प्रश्न
Which colour of light travels fastest in any medium except air?
The following diagram shows a 60°, 30°, 90° glass prism of critical angle 42°, Copy the diagram and complete the path of incident ray AB emerging out of the prism marking the angle of incidence on each surface.
While tracing the path of a ray of light passing through a rectangular glass slab a student tabulated his observations as given below:
|
S.NO. |
∠i |
∠r |
∠e |
|
I |
60° |
40° |
61° |
|
II |
50° |
36° |
51° |
|
III |
40° |
28° |
39° |
|
IV |
30° |
20° |
31° |
The correct observations is:
(A) I
(B) II
(C) III
(D) IV
Fill in the blank to complete the following sentence:
When light travels from a rarer to a denser medium, it bends ...........
Which colour of light travels fastest in any medium except air?
Name the material for which the refractive index is found to be maximum.
State the relation between the refractive index μ and the velocity of light (vm) in that medium.
Draw ray of light bending towards the normal while passing from air to glass. Label your diagrams.
Trace a ray of light incident at 30° on a surface if travelling from air to glass. What is the angle of refraction in this case? (R.I. for glass = 3/2).
