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

Last updated: 6/25/2023

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