Question

what is pfund
series formula​

Answer 1

A series of lines in the infrared spectrum of atomic hydrogen whose wave numbers are given by RH [(1/25) - (1/ n 2)], where RH is the Rydberg constant for hydrogen, and n is any integer greater than 5.

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Answer 2

Answer:

1/lambda = RZ^2 (1/n1^2 - 1/n2^2)

where n1 = 5 and n2 = 6,7,8,.......