CUET · PHYSICS · PYQ PAPER 2025
When a convex lens of glass is immersed in water, its power will
- A increase
- B decrease
- C remain the same
- D become zero
Answer & Solution
Correct Answer
(B) decrease
Step-by-step Solution
Detailed explanation
\(P \propto (\frac{n_{lens}}{n_{medium}} - 1)\) \(n_{water} > n_{air}\) \(\Rightarrow (\frac{n_{lens}}{n_{water}} - 1) Power decreases.
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