If `(sini)/(sinr)=n_(21)gt1.` Out of medium 1 and medium 2, which is more optically denser ?

Explanation

To determine which medium is more optically dense based on the given relationship \((\sin i)/(\sin r) = n_{21} > 1\), we can follow these steps:

### Step 1: Understand the relationship
The equation \((\sin i)/(\sin r) = n_{21}\) is derived from Snell's Law, which states:
\[ n_1 \sin i = n_2 \sin r \]
where:
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