Question

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

Options

• The entire spectrum of visible light will come ·out of the water at an angle of 90° to the normal.

• The spectrum of visible light whose frequency is less than that of green light will come out to the air medium.

• The spectrum of visible light whose frequency is more than that of green light will come out to the air medium.

• The entire spectrum of visible light will come out of the water at various angles to the normal.

Answer 1

The spectrum of visible light whose frequency is less than that of green light will come out to the air medium.