A) potential energy increases and kinetic energy decreases
B) kinetic energy increases and potential energy decreases
C) Both KE and PE increase
D) Both KE and PE decrease
Correct Answer: A
Solution :
As r increases, the potential energy increases. Thus, it decreases kinetic energy of hydrogen atom. So, when an atom jumps from one energy level to the higher level, its potential energy increases and kinetic energy decreases.
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