Q. An unpolarised beam of intensity $I_{0}$ falls on a polariod. The intensity of the emergent light is
A) $\frac{I_{0}}{2}$
B) $I_{0}$
C) $\frac{I_{0}}{4}$
D) Zero
Explanation
(a) If an unpolarised light is converted into plane polarized light by passing through a polaroid its intensity becomes half.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.