A bright point object is kept at some distance from a fixed lens of focal length 2 m. If the object distance is changed
Posted: Fri Jun 10, 2022 11:29 am
A bright point object is kept at some distance from a fixed lens of focal length 2 m. If the object distance is changed to be 5/6 times, the distance of the screen from the lens has to be changed to be 5/3 times to obtain a clear image on the screen. Find the distance (in m) through which the screen has been moved. (A) I m (B) 2 m (C) 3 m (D) 4 m