Question

An unpolarised light of intensity I is passed through two polaroids kept one after the other with their planes parallel to each other. The intensity of light emerging from second polaroid is $\frac{I}{4}$. The angle between the pass axes of the polaroids is

• A. 0°
• B. 60°
• C. 30°
• D. 45°

Answer 1

Answer: (D)

45°

Answer 2

The correct answer is (D) : 45°.