1.

A plane mirror M is arranged parallel to a wall W at a distance /from it: The light produced by a point.source S kept on the wall is reflected by the mirror and produces a patch of light on the wall. The mirror moves with velocity v towards the wall. Which of the following statement(s) is/are correct?

Answer»

The PATCH of LIGHT will move with speed v on the WALL
The patch of light will not move on the wall
As the mirror comes closer, then patch of light will become larger and shift away from the wall with speed larger than v
The size of the path light on the wall remains the same

Answer :B::D


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