Two mirrors M and M make an angle with line AB A point

Last updated: 6/8/2023

Two mirrors M and M make an angle with line AB A point source S is kept at a distance r from the point of intersection of mirrors A small hemispherical annular mask is kept close to S so that no ray emanating from S directly reaches the screen kept at a distance b from the source Interference pattern of rays reflected from M and M is observed on the screen Find the fringe width of this interference pattern wavelength of light being emitted by source A C 2 b 2rsin b 2rsin 20 b rcos 20 2r sin 20 B D M m S b 2r cos 26 2r sin 20 2 b 2rcos 20 rsin 20 b b Sc hemispherical annular mask 27 Surfac