Question

If the potential energy of the electron in the hydrogen atom is -e²/4π∈₀ r then what is its Kinetic energy?choose the correct option from the given options.
(A) -e²/4π∈₀ r
(B) e²/8π∈₀ r
(C) - e²/8π∈₀ r
(D) e²/4π∈₀ r

Answer 1

Answer:

A is the correct answer...

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Answer 2

(A) -e²/4π∈₀ r is the correct answer

Explanation:

Potential energy of the electron in the hydrogen atom is given as -e²/4π∈₀ r. So to know its Kinetic energy, we should apply the law that energy can neither be created nor destroyed. Energy changes from one form to another and can only be transferred.

So, no matter what form of energy we measure, the total energy is going to be  -e²/4π∈₀ r.