Unpolarized light falls on two polarizing sheets placed one on top of the other. What must be the angle between the characteristic directions of the sheets if the intesity of the transitted light is one third of intensity of the insident beam ?

Explanation

To solve the problem of finding the angle between the characteristic directions of two polarizing sheets such that the intensity of the transmitted light is one third of the intensity of the incident beam, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Problem**:
We have unpolarized light incident on two polarizing sheets. The goal is to find the angle between the two sheets such that the transmitted intensity is one third of the incident intensity.

2. **Initial Intensity**:
...