Question

When a beam of light, originally traveling in air, enters a piece of glass having an index of refraction of 3/2, its frequency____

(A) is unaffected.
(B) is reduced to 2/3 its original value.
(C) increases by a factor of 3/2.

Answer 1

Answer:

option (A)

Explanation:

The frequency of light is defined as the number of vibrations of light waves completed in one second. It is the property of source.

When the light suffers refraction and reflection, the frequency never changes but the wavelength and the velocity of wave changes.

So, the frequency remains unaffected.