Observe the picture given in figure carefully.

A patch of light is obtained at B when the torch is lighted as shown. Which of the following is kept at position A to get this patch of light?
$(a)$. A wooden board
$(b)$. A glass sheet
$(c)$. A mirror
$(d)$. A sheet of white paper"

AcademicPhysicsNCERTClass 6

To obtain this patch of light, A mirror should be kept at A so that reflection can take place and the direction of light is changed through reflection.

So, option $(c)$ is correct.

Updated on 10-Oct-2022 13:30:25