Question

A student obtains a blurred image of an object on a screen by using a concave mirror. In order to obtain sharp image on the screen, he will have to shift the mirror

A)towards the screen
B)either towards or away from the screen depending upon the position of the object
C)away from the screen
D)to a position very far away from the screen​

Answer 1

Answer:

Since the image formed by the concave mirror depends upon the position of the image from the pole and as the nature of the image is not mentioned, therefore for getting the sharp image he will have to shift the mirror either towards or away from the screen depending upon the object position