What will be the effect on the power of a glass lens if it is immersed in water ?

Explanation

To determine the effect on the power of a glass lens when it is immersed in water, we can follow these steps:

### Step 1: Understand the Lensmaker's Formula
The power (P) of a lens is related to its focal length (f) by the formula:
\[ P = \frac{1}{f} \]
Additionally, the lensmaker's formula gives us:
\[ P = \frac{\mu_L}{\mu_M - 1} \cdot \left( \frac{1}{R_1} - \frac{1}{R_2} \right) \]
where:
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