54 A light ray I is incident on a plane mirror M The mirror

Last updated: 6/3/2023

54 A light ray I is incident on a plane mirror M The mirror is rotated in the direction as shown in the figure by an arrow at frequency 9 1 rps M The light reflected by the mirror is received on the wall W at a distance 10 m from the axis of rotation when the angle of incidence becomes 37 the speed of the spot a point on the wall is a 10 m s c 500 m s 37 b 1000 m s d 20 m s 10m W