what is power of lence
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Power of lens is the tendency of a lens to converge or diverge the rays is known as power of lens. ... The ability of a lensto converge or diverge the upcoming rays is called its power of lens. Also, mathematically it can be defined as the reciprocal of focal length of a lens. It's SI unit is Dioptre.
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- The power of a lens is the reciprocal of its focal length .
- Its S.I unit is Diopter (D).
- Power = 1/focal length .
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