Question

Three polaroid sheets are co-axially placed as indicated in the diagram. Pass axes of the polaroids 2 and 3 make 30o and 90o with pass axis of polaroid sheet 1. If I0 is the intensity of the incident unpolarised light entering sheet 1, the intensity of the emergent light through sheet 3 is

• A. zero
• B. $\frac{3I_0}{32}$
• C. $\frac{3I_0}{8}$
• D. $\frac{3I_0}{16}$

Answer 1

Answer: (B)

$\frac{3I_0}{32}$

Answer 2

The correct answer is Option (B) : $\frac{3I_0}{32}$