ii) What is meant by 'power of a lens"?State the S.L. unit of power of a lens.
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Explanation:
Power of lens is known as the inverse of the focal length of the lens measured in meter(m).
S.I unit of power = Dioptre (D)
Power of lense = 1/ focal length in meter.
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Answer:
Power of lens is known as the inverse of the focal length of the lens measured in meter(m). S.I unit of power = Dioptre (D) Power of lense = 1/ focal length in meter.
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