NEET 2022

NEET 2022 Physics question on Ray Optics

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. A.
    +2 D+2\,\text{D}
  2. B.
    +20 D+20\,\text{D}
  3. C.
    +5 D+5\,\text{D}
  4. D.
    Infinity
Show answer

Correct option: C

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