Question

Q4b) pls ans fast and give reason and ans in proper form

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Answer 1

frnds ...

.here is your answer ...

it is defined as reciprocal of focal length or it is ability of a lens to bend the rays of light falling on it . si unit of power of Lens is dioptre. one dioptre is defined is defined as power of Lens whose focal length is 1 meter .

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