Electron beam used in an electron microscope, when accelerated by a voltage of 20 kV. has a de-Broglie wavelength of 
. If the voltage is increased to 40 kV. then the de-Broglie wavelength associated with the electron beam would be:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
When electron is accelerated through potential difference V, then K.E. = eV
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