The electron in a hydrogen atom first jumps from the third excited sta – McqOptions

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1.	The electron in a hydrogen atom first jumps from the third excited state to the second excited state and subsequently to the first excited state. The ratio of the respective wavelengths, λ1/λ2, of the photons emitted in this process is:
A.	20/7
B.	27/5
C.	7/5
D.	9/7
Answer» B. 27/5

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