What is power of lens? State SI unit of power of lens. Write formula which gives relationship between power of lens
and focal length of lens.
pls fast
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The power of lens is defined as its efficiency to deviate a light ray to its maximum extent by using the focal length of the lens.
SI unit of power of lens is Dioptre.
power in dioptre=1/focal length.
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Answer:
the power of lens is it's ability to converge or diverge the light falling on object.
The si unit is diopter. it is represented by D.
The formula which gives relationship between power of lens and focal length of lens is P=1/f
Here f is focal length and it is measured in meter.So power of lens P=Dms^-1
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