What is polarization of light ? Explain the polarization by reflection.

Explanation

### Step-by-Step Solution

**Step 1: Define Polarization of Light**
- Polarization of light is a phenomenon in which the oscillations of light waves are restricted to a particular plane. This means that instead of oscillating in all directions, the light waves vibrate in a specific orientation.

**Step 2: Explain Unpolarized Light**
- Unpolarized light consists of waves that oscillate in multiple planes. For example, natural sunlight is unpolarized, as it contains waves vibrating in various directions.

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