Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Easy-Class 12
According to Malus' law, if the intensity of polarized light after passing through a polaroid P1 is I0, what will be the intensity of light after passing through a second polaroid P2, which is oriented at an angle of 60° with respect to P1?
A
0.25 I0
B
0.50 I0
C
0.75 I0
D
00 I0
Correct Answer
Option A
Detailed Explanation
Malus' law states that the transmitted intensity I through two polaroids is I = I0 cos²θ. With θ = 60°, I = I0 cos²60° = I0 (0.5)² = 0.25 I0.
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