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, we need to calculate the angle of minimum deviation (Δm) of an equilateral glass prism when it is placed in a medium with a given refractive index. Here’s a step-by-step solution:

### Step 1: Identify the given data
- Refractive index of glass prism in air (μg) = 1.6
- Refractive index of the medium (μm) = \( \frac{4\sqrt{2}}{5} \)
- Angle of the prism (A) = 60° (since it is an equilateral prism)

### Step 2: Use the formula for refractive index
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