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Questions
For which colour of white light the refractive index of a transparent medium the most? Give the reason for your answer.
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Solution
The refractive index of a transparent medium is least for the red light.
RELATED QUESTIONS
If the speed of light in vacuum is 3 × 108 ms−1, find the speed of light in a medium of absolute refractive index 1.5.
Write a relationship between the angle of incidence and angle of refractions for a given pair of media
Which colour of light travels fastest in any medium except air?
A ray of light of wavelength 6600 Å suffer refraction from air to glass. Taking \[\ce{_a\mu_g = \frac{3}{2}}\], find the wavelength of light in glass.
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
Fig. shows a ray of white light that passes through a prism and produces a spectrum.
(a) Name the phenomenon that is taking place.
(b) What colour would you see at X and Y?
(c) What radiation would you detect above X and below Y?
Make the correct for each of the following :
With reference to the fig, the refractive index of the glass block is
Express the refractive index μ of a medium in terms of the velocity of light.
What do you understand by the deviation produced by a prism?
