angle of second prism should be 176 2 8 3 10 4 4 A beam of

Last updated: 6/27/2023

angle of second prism should be 176 2 8 3 10 4 4 A beam of light from a souce L is incident normally on a plane mirror fixed at a certain distance x from the source The beam is reflected back as a spot on a scale placed just above the source L When the mirror is NEET 2017 rotated through a small angle 0 the spot of the light is found to move through a distance y on the scale The angle is given by