Refraction at Curved Surface AR & Other Type MCQs Ray Optics and Optical Instruments Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

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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