A glass 1 5 cylinder of radius R and height h is placed on a

Last updated: 6/9/2023

A glass 1 5 cylinder of radius R and height h is placed on a table top and a point source S is placed at a height h above the centre as shown in figure The unilluminated area on the table top outside the cylinder is S 6 3 R 7TR 2 2 R 5 R h