Which of the transitions in hydrogen atom emits a photon of lowest fre – McqOptions

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1.	Which of the transitions in hydrogen atom emits a photon of lowest frequency (n = quantum number) [BHU 1999]
A.	n = 2 to n = 1
B.	n = 4 to n = 3
C.	n = 3 to n = 1
D.	n = 4 to n = 2
Answer» C. n = 3 to n = 1

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