The lens A has a focal length of 25 cm whereas another lens B has a focal length of 60 cm. Giving reason state, which lens has more power : A or B.


Power of the lens is reciprocal of its focal length, so it varies inversely with the focal length. Thus, Lens A has a small focal length (25 cm) and hence, it would have more power than Lens B.

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Updated on: 10-Oct-2022

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