An equilateral glass prism has a refrective index 1.6 in air. Calculate the angle of minimum deviation of the prism, when kept in a medium of refractive index `4sqrt2/5`.

Explanation

To solve the problem of finding the angle of minimum deviation for an equilateral glass prism in a medium with a given refractive index, we can follow these steps:

### Step 1: Understand the given data
- The refractive index of the glass prism (n_g) = 1.6
- The refractive index of the medium (n_m) = \( \frac{4\sqrt{2}}{5} \)
- The angle of the prism (A) for an equilateral prism = 60° (since all angles in an equilateral triangle are equal)

### Step 2: Use the formula for the angle of minimum deviation (D)
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