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If a beam of red light and a beam of violet light are incident at the same angle on the inclined surface of a prism from air medium and produce angles of refraction r and v respectively, which of the following is correct?
(A) r = v
(B) r > v
(C) r = 1/v
(D) r < v
Answer -
The red light bends the least while the violet the most.
We can see from the figure that
- Red bends the least , so it’s angle of refraction is lowest (i.e. r is lowest )
- Violet bends the most , so it’s angle of refraction is highest (i.e. v is highest )
So, the correct answer is (d)
