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

Last updated: 6/10/2023

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