Given below are two statements: 

Assertion (A): ​ A double convex lens (\(\mu=1.5\)) has focal length \(10\) cm. When the lens is immersed in water \((\mu=\frac{4}{3})\) its focal length becomes \(20\) cm.​
Reason (R): \(\frac{1}{f}=\frac{\mu_l-\mu_m}{\mu_m}(\frac{1}{R_1}-\frac{1}{R_2})\)

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.



 

Subtopic:  Refraction at Curved Surface |
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NEET 2023 - Target Batch - Aryan Raj Singh
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