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Simple Microscope Angular Magnification

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Question

The image of an object is formed at the least distance of distinct vision from the lens of a simple microscope of focal length $2.5 c m$ . Its magnifying power is:

A

2.5

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B

5

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C

10

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D

11

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Solution

The correct option is D $11$
Magnification of simple microscope is:
$m = 1 + \frac{D}{f}$
$= 1 + \frac{25}{2.5}$
$= 11$

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