Atoms And Nuclei Question 35

Question: When a hydrogen atom is raised from the ground state to an excited state [CBSE PMT 1995; AMU (Med.) 1999]

Options:

A) P.E. increases and K.E. decreases

B) P.E. decreases and K.E. increases

C) Both kinetic energy and potential energy increase

D) Both K.E. and P.E. decrease

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Answer:

Correct Answer: A

Solution:

P.E. $ \propto -\frac{1}{r} $ and K.E. $ \propto \frac{1}{r} $ As r increases so K.E. decreases but P.E. increases.



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