A transparent solid cylindrical rod has a refractive index u

Last updated: 6/26/2023

A transparent solid cylindrical rod has a refractive index u and is surrounded by air A light ray is incident at mid point of one end of rod as shown If 0 is angle of incident then u for grazing a light along the walls is sine 2 3 0 1 3 W W N Z 1 3 2 1 O 4 3