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Question

The ray diagram given below illustrates the experimental set up for the determination of the focal length of a converging lens using an auxiliary mirror:

The distance between the object and optical centre of the lens is


A

Radius of curvature

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B

Double the focal length

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C

Focal Length

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D

Infinity

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Solution

The correct option is C

Focal Length


The magnification of the image is 1. The image formed is real and of the same size as the object. And the image is formed at the focus.


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