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Simple Microscope Angular Magnification

A concave len...

Question

A concave lens of focal length 5 cm is used as a simple microscope. The image is formed at the least distance of distinct vision. Calculated the angular magnification.

A

6

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B

5

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C

0.5

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D

4

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Solution

The correct option is A 6
$M = 1 + \frac{D}{f}$
$= 1 + \frac{25 c m}{5 c m} = 6$

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