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Question

A man is looking at a small object placed at his near point. without altering the position of his eye or the object, he puts a simple microscope of magnifying power 5X before his eyes. The angular magnification achieved is

A
5
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B
2.5
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C
1
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D
0.2
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Solution

The correct option is A 5
The angular magnification and the magnifying power is the same thing for a simple microscope. It is the ratio of the angle subtended at the eye by the image formed at the distance of the distinct vision to the angle subtended by the object when placed at the distance of the distinct vision.
Hence, the Angular magnification = Magnifying power of microscope =5

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