Question

A point source s is placed at the bottom of a transparent block of height 10mm & refractive index 2.72. It is a immuse in a lower refractive index liquid .It is fond that the light emerging from the block to the liquid form a circular bright spot of diameter 11.54mm on the top of the block the refractive index of the liquid is

Answer 1

SsssSSSßSSSSSSßSSSSSSSSSSSSSDDDDDĎDĎDĎD