An electron moves in a circular orbit at a distance from a proton with kinetic energy 
. To escape to infinity, the minimum energy which must be supplied to the electron is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
If kinetic energy is 
, then total energy will be 
, i.e. energy 
must be supplied to the electron to escape to infinity.
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