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 beA. `-327.5`B. `-32.75`C. `-3.275`D. `32.75`

The focal length of the objective and the eyepiece of a microscope are

1.	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 beA. `-327.5`B. `-32.75`C. `-3.275`D. `32.75`
Answer» Correct Answer - 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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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 beA. `-327.5`B. `-32.75`C. `-3.275`D. `32.75`

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