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Ray Optics and Optical Instruments — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsRay Optics and Optical Instruments1 Mark
Question
Define the power of a lens.
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Answer

The power of a lens is defined as the inverse of the focal length of the lens, i.e., $P =\frac{1}{f(m)}$.

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