MCQ
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 5 X before his eyes. The angular magnification achieved is
Options
5
2.5
1
0.2
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Solution
1
We have :
h = Object height
u = object distance = 25 cm
D = Near point = 25 cm
Now,
m = `(h/u)/(h/D)`
⇒ m = `(h/u)/(h/25)`
⇒ m = 1
Concept: Optical Instruments - The Microscope
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