A flat mirror M is arranged parallel to a wall W at a

Last updated: 5/31/2023

A flat mirror M is arranged parallel to a wall W at a distance L from it as shown in the figure The light produced by a point source S kept on the wall is reflected by the mirror and produces a light patch on the wall The mirror moves with velocity v towards the wall wall A B C D S V The patch of light will move with the speed v on the wall The patch of light will not move on the wall As the mirror comes closer the patch of light will become larger and shift away from the wall withspeed larger than v The width of the light patch on the wall remains the same