Given below are two statments: One is labelled as Assertion (A) and the other is labelled…
Physics · JEE Main · NTA Exams — Optics
Given below are two statments: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): When a convex lens \(\left(\mu_{q}=3 / 2\right)\) of focal length f is dipped in water \(\left(\mu_{m}=\frac{4}{3}\right)\), its focal length becomes 4f.
Reason (R): The focal length of convex lens is always half of its radius of curvature.
In the light of the above statements, choose the most appropriate from the options given below:
- (A) is true but (R) is false
- (A) is false but (R) is true
- Both (A) and (R) are true and (R) is the correct explanation of (A)
- Both (A) and (R) are true and (R) is not the correct explanation of (A)
Answer
(A) (A) is true but (R) is false
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