A rod of glass 1 5 and of square cross section is bent into

Last updated: 6/9/2023

A rod of glass 1 5 and of square cross section is bent into the shape shown in figure A parallel beam of light falls on the plane flat surface A as shown in figure If a is the width of a side and R is the radius of circular are then for what maximium value of light entering the glass slab through R surface A emerges from the glass through B 1 1 5 2 0 5 3 1 3 4 None of these