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The SI unit of power of a lens is?

AX1. newton

Bdioptre

Cjoule

Dmetre

Answer:

B. dioptre

Read Explanation:

  • The SI unit of power of a lens is the dioptre (D), which is the reciprocal of the focal length measured in meters.

  • A dioptre is equal to the reciprocal of the focal length measured in meters.

  • The Power of a lens is the ability of a lens to converge or diverge light rays depending on its focal length.


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