A ray of light undergoes deviation of `30^@` when incident on an equilateral prism of refractive index `sqrt2.` what is the angle subtended by the ray inside the prism with the base of the prism?

Explanation

To solve the problem step by step, we will follow the logical deductions based on the properties of an equilateral prism and the concept of minimum deviation.

### Step 1: Understand the Given Information
We have an equilateral prism with:
- Refractive index \( n = \sqrt{2} \)
- Angle of the prism \( A = 60^\circ \) (since it’s equilateral)
- Angle of deviation \( \delta = 30^\circ \)

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