Class 12 NEET Physics Optics Questions Part 1

Question : 84 of 100

Marks: +1, -0

A small source of light is 4 m below the surface of water of refractive index

. In order to cut off all the light, coming out of water surface, minimum diameter of the disc placed on the surface of water is

(1994)

Go to Question:

Prev Question

Next Question