Jee Main
Geometrical Optics
JEE Main 2024 (Online) 27th January Morning Shift
MCQ+4 / -12024
A convex lens of focal length \(40 \mathrm{~cm}\) forms an image of an extended source of light on a photoelectric cell. A current I is produced. The lens is replaced by another convex lens having the same diameter but focal length \(20 \mathrm{~cm}\). The photoelectric current now is :