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The focal length of the objective and th...

The focal length of the objective and the eyepiece of a microscope are`4mm`and `25mm`respectively.If the final image is formed at infinity and the length of the tube is `16cm`the magnifying power of the microscope will be

A

`-327.5`

B

`-32.75`

C

`-3.275`

D

`32.75`

Text Solution

Verified by Experts

The correct Answer is:
1
`M=-(V_(0))/(u_(0))(D)/(f_(e))`
`u_(0)=-((54)/(131))cm`
`M=(-13.5)/(((54)/(131)))xx(25)/(2.5)=-327.5`
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