Unpolarized light of intensity passes through an ideal polarizer A

PHYSICS · Single correct · CBSE · Physics · Wave Optics · Wave Optics

Problem

Unpolarized light of intensity

I

passes through an ideal polarizer A. Another identical polarizer B is placed behind A. The intensity of light beyond B is found to be

\frac{I}{2}

. Now another identical polarizer C is placed between A and B. The intensity beyond B is now found to be

\frac{I}{8}

. The angle between polarizer A and C is: (1)

0^\circ

(2)

30^\circ

(3)

45^\circ

(4)

60^\circ