Electrons used in an electron microscope are accelerated by a voltage of 25 kV. If the voltage is increased to 100 kV then the de-Broglie wavelength associated with the electrons would

Increase by 4 times

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Increase by 2 times

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Decrease by 2 times

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Decrease by 4 times

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Solution

The correct option is C Decrease by 2 times
$λ \propto \frac{1}{\sqrt{v o l t}}$

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Similar questions

Q. Electrons used in an electron microscope are accelerated by a voltage of

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. If the voltage is increased by

100 k V

then the de-Broglie wavelength associated with electrons would

Q. Electrons used in an electron microscope are accelerated by a voltage of

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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. If other factors (such as numerical aperture, etc.) are taken to be roughly the same, how does the resolving power of an electron microscope compare with that of an optical microscope which uses yellow light?

Q. 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 used yellow light?

Q. 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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Electrons used in an electron microscope are accelerated by a voltage of 25 kV. If the voltage is increased to 100 kV then the de-Broglie wavelength associated with the electrons would

The correct option is C Decrease by 2 timesλ∝1√volt

The correct option is C Decrease by 2 times
$λ \propto \frac{1}{\sqrt{v o l t}}$