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An electron microscope is superior to an...

An electron microscope is superior to an optical microscope in

A

Having better resolving power

B

Low cost

C

Being easy to handle

D

Quikness of observation

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The correct Answer is:
A
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An electron microscope uses electrons accelerated by a voltage of 50 kV. Determine the de-Broglie wavelength associated with the electrons. Taking other factors, such as numerical aperture etc. to be same, how does the resolving power of an electron microscope compare with that of an optical microscope which uses yellow light?

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A compound microscope uses an orjective lens of focal length 4 cm and eyepiece lens of focal Length 10cm. AN object is placed at 6 cm from the objective lens. Calculate the magnifying power of the compound microscope. Also calculate the length of the mircroscope.

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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 4-PHYSICS
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