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Question

Cells are first focussed in microscope under

A
40 X
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B
10 X
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C
100 X
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D
None of these
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Solution

The correct option is B 10 X
The microscope is the instrument used to see the smallest object that we cannot see by our naked eyes. A compound microscope has eye piece with 10X magnification.
It has objective lenses of 10X, 40X and 100 X.
So, when it is focused first it is observed through 10X magnification.
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