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A hydrogen atom is in its third excited state. It de-excites by releasing a photon of the longest wavelength.

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A hydrogen atom is in its third excited state. It de-excites by releasing a photon of the longest wavelength. 

What is the ratio of the velocity of the electron in the third excited state to the new state? 

A. 4/3 

B. 3/4 

C. 4/1 

D. 1/4

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1 Answer

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by (46.6k points)

Correct option is : B. 3/4

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