Question

When an unpolarised beam of light of intensity $I_0$ is incident on a polaroid, the intensity of transmitted light is

• A. 0
• B. $I_0$
• C. $\frac{I_0}{2}$
• D. $\frac{I_0}{4}$

Answer 1

Answer: (C)

$\frac{I_0}{2}$

Answer 2

An unpolarised beam of light of intensity $I_0$ is incident on a polaroid, the intensity coming out is half of the incident intensity $\frac{I_0}{2}$.