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If a cell is viewed under low power and ...

If a cell is viewed under low power and them under high power , and no fine adjustment is necessary to see it clearly , the microscope is considered

A

parfocal

B

bifocal

C

achromatic

D

apochromatic

Text Solution

Verified by Experts

The correct Answer is:
A
In a parfocal optical microscope the objective lenses are so constructed or mounted that one may change from one to another and the image remains focused, the lenses have focal points in the same plane
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