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Define the power of a lens.

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Questions

Define the power of a lens.

Define the term power of a lens.

Definition
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Solution 1

Power of a lens is defined as the ability of a lens to bend the rays of light. It is given by the reciprocal of focal length in metre.

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Solution 2

The power of a lens is a measure of the deviation produced by it in the path of rays refracted through it.

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Chapter 5: Refraction of Light through Lenses - EXERCISE [Page 134]

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