A) The kinetic energy of an electron is inversely proportional to square of its momentum
B) de-Broglie wavelength associated with a particle is directly proportional to its mass
C) de-Broglie wavelength associated with a particle is directly proportional to square of its velocity
D) The wavelength associated with an electron is directly proportional to square root of accelerating potential
E) The kinetic energy of an electron is directly proportional to accelerating potential
Correct Answer: E
Solution :
The kinetic energy of an electron is directly proportional to accelerating potential. \[\because \] \[\frac{1}{2}m{{v}^{2}}=eV\] \[\therefore \] KE \[\propto \] V (where V = potential difference)
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