A large lens is used to focus an image of an object onto a screen
PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
53. A large lens is used to focus an image of an object onto a screen. If the left half of the lens is covered with a dark card, which of the following occurs
(A) The left half of the image disappears
(B) The right half of the image disappears
(C) The image becomes blurred
(D) The image becomes dimmer