A disc is placed on the surface of pond with liquid of 5

Last updated: 6/25/2023

A disc is placed on the surface of pond with liquid of 5 refractive index A source of light is placed 4 m below the 3 surface What is minimum area of the disc so that light does not come out of liquid 28 26 m 42 4 m 32 62 m 32 6 m