Two transparent media A and B have thickness ratio 1 : 2. The time taken by light in passing through A and B is same. Find the refractive index of B w.r.t A.

Explanation

To solve the problem step by step, we will analyze the given information about the two transparent media A and B.

### Step 1: Understand the Given Information
We know that:
- The thickness ratio of media A and B is 1:2.
- The time taken by light to pass through both media is the same.

Let the thickness of medium A be \( x \) and the thickness of medium B be \( 2x \).
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