A lens having focal length f and aperture of diameter d forms an image of intensity I. Aperture of diameter d/2 in central region of lens is covered by a black paper. Focal length of lens and intensity of image now will be respectively

BITSAT 2016 Paper

Section: Physics

Question : 39 of 150

Marks: +1, -0

A lens having focal length f and aperture of diameter d forms an image of intensity I. Aperture of diameter

in central region of lens is covered by a black paper. Focal length of lens and intensity of image now will be respectively

Go to Question:

Prev Question

Next Question