A converging beam of light rays passes through a round opening in a screen. The beam converges
Channel: Doubtnut
Date: 20/02/2020

A converging beam of light rays passes through a round opening in a screen. The beam converges at a point A which is at a perpendicular distance of 15 cm from the screen and lies slightly above the central axis of the circular opening. A convex lens of focal length 30 cm is inserted in the opening. At what distance from the screen do the rays converge now ?