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A compound microscope produces a magnifi...

A compound microscope produces a magnification of 24. The focal length of the eyepiece is 5 cm. The final image is formed at the least distance of distinct vision. What is the magnification produced by the objective ?

A

5

B

6

C

7

D

4

Text Solution

Verified by Experts

The correct Answer is:
D
For a compound microscope, `M=m_(o)xxm_(e)`
and since the final image is formed at D,
`M=m_(o)(1+(D)/(f_(e)))`
`therefore m_(o) =(M)/(1+(D)/(f_(e)))=(24)/(1+(25)/(5))`
`therefore m_(o) =(24)/(1+5)=4`
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