Question

If we need a magnification of from a compound microscope of tube length and an objective of focal length , the focal length of the eye-piece, should be close to :

A

mm

B

mm

C

mm

D

mm

Hard
JEE Mains
Solution
verified
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Correct option is D)

Given .
for a compound microscope is given by

focal length of objective lens is small . Alos as focal length of eye is small








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