A biconcave lens made of a transparent material of refractive index 1.25 is immersed in water of refractive index 1.33. Will the lens behave as a converging or a diverging lens? Give reason.

Explanation

To determine whether a biconcave lens behaves as a converging or diverging lens when immersed in water, we need to analyze the refractive indices involved.

### Step-by-Step Solution:

1. **Identify the Refractive Indices**:
- The refractive index of the biconcave lens (n_lens) = 1.25
- The refractive index of water (n_water) = 1.33

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