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>>Optical Instruments : Microscope
>> $In a compound microscope the focal lengt$

Question

In a compound microscope the focal length of objective lens.

A

Is more than the focal length of eyepiece lens

B

Is less than the focal length of eyepiece lens

C

Is equal to the focal length of eyepiece lens

D

Is two times to the focal length of eyepiece lens

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Updated on : 2022-09-05

Solution

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Correct option is B)

As the magnifying power of compound microscope is inversely proportional to the focal length of the objective lens.
Hence , smaller is the focal length, higher is the magnifying power.
Therefore, focal length of objective lens is less than the focal length of eyepiece lens.

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