Question

The ratio of wavelength H(alpha), of Lyman Series and H(alpha),
of Pfund Series is
(1) 54.7 : 1
(2) 0.0183: 1
(3) 61.4:1
(4) 0.0163 : 1​

Answer 1

it's (3) 61.4:1...

Explanation:

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