An equilateral glass prism of refractive index 1.5 is immersed in water. Find the angle of deviation produced when a ray of light is incident at `42^(@)` on one face of the prism.
(Refractive index of water = 1.33)

Explanation

To solve the problem of finding the angle of deviation produced when a ray of light is incident at \(42^\circ\) on one face of an equilateral glass prism immersed in water, we can follow these steps:

### Step 1: Identify Given Values
- Refractive index of glass prism (\( \mu_g \)) = 1.5
- Refractive index of water (\( \mu_w \)) = 1.33
- Angle of the prism (\( A \)) = 60° (since it is an equilateral prism)
- Angle of incidence (\( i \)) = 42°

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