A proton is about `1840` times heavier than an electron. When it is accelerated by a potential difference difference of `1kV`, its kinetic enegry will be

Options

A. 1840 keV
B. 1/1840 keV
C. 1keV
D. 920 keV

Answer

C

Explanation

Energy required by electron (as K.E.) on being accelerated by a potential difference of 1 kV \ 1ke V. Since the proton has the same charge and also energy = potential difference `xx` charge, hence proton will have the kinetic energy.