The focal length of a convex lens when placed in air and then in wate – McqOptions

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1.	The focal length of a convex lens when placed in air and then in water will
A.	Increase in water with respect to air
B.	Increase in air with respect to water
C.	Decrease in water with respect to. air
D.	Remain the same
Answer» B. Increase in air with respect to water

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