1.

An electron moves in a circular orbit at a distance from a proton with kinetic energy E to escape to infinity, the minimum energy which must be supplied to the electron isA. EB. 2EC. 0.5ED. `Esqrt(2)`

Answer» Correct Answer - A
If kinetic energy is E, then totla enery will be -E i.e., energy E must be supplied to the electron.


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