A green light is incident from the water to the air – water interface at the critical angle `(theta)`. Select the correct statement

Options

A. The spectrum of visible light whose frequency is more than that of various angles to the normal
B. The entire spectrum of visible light will come out of the water at angle of `90 ^(@)` to the normal
C. The entire spectrum of visible will come out of the water at angle of `90^(@)` to the normal.
D. The spectrum of visible light whose frequency is less than that of green light will come out to the air medium.

Answer

D

Explanation

Frequency of light (v) `gt` frequency of green light `(V_(G))`
`mu` is also greater than `mu_(G)` and critical angle of light is less than green light therefore light will got total internal reflaction and not come out to the air .
For frequency of light `(v) lt V_(G)` , light will not suffer T.I.R . Therefore light comes out to the air