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KEAM 2011 Physics and Chemistry Paper

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Question : 99

Total: 120

Which transition in the hydrogen atomic spectrum will have the same wavelength as the transition, n=4 to n=2 of He+ spectrum?

n=4 to n=3
n=3 to n=2
n=4 to n=2
n=3 to n=1
n=2 to n=1

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