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A biconvex lens has radii of curvature 20 cm each. If the refractive index of the material of the lens is 1.5 the power of the lens is

Q.A biconvex lens has radii of curvature 20 cm each. If the refractive index of the material of the lens is 1.5 the power of the lens is

(1) +2 D

(2) +20 D

(3) +5 D

(4) Infinity                                                                                    (NEET-2022)

Aditya Bhatt Answered question 11 February 2024
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