Physics, asked by ramnarayanbishn5540, 10 months ago

A concave lens of focal length f forms an image which is 1\ 3 times the size of the object then find the distance of object from the lens

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Answered by Anonymous

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The size of the image m=1x=vuor v=ux.

Therefore

1f=1v-1u=xu-1u=x-1uor u=x-1f

Therefore correct answer is option 1 x-1f.

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