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प्रश्न
What is the power of a convex lens of focal length 0.5 m?
संख्यात्मक
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उत्तर
Power of a lens is given by:
Power `(p)=1/f`
∴`p=1/0.5=2D`
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
What is the power of a convex lens of focal length 0.5 m?
Power of a lens is given by:
Power `(p)=1/f`
∴`p=1/0.5=2D`