Light travelling in air falls at a boundary between air and water at an angle 30 degrees with the normal. Find the deviation (R.I. of water is = 4/3)

Explanation

To find the deviation of light when it travels from air to water, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Given Values**:
- Angle of incidence (i) = 30 degrees
- Refractive index of air (n1) = 1
- Refractive index of water (n2) = 4/3
...