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What is the ratio of wavelength of radiations emitted when an electron in hydrogen atom jump from fourth orbit to second ornti and from third orbit to

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What is the ratio of wavelength of radiations emitted when an electron in hydrogen atom jump from fourth orbit to second ornti and from third orbit to second orbit?
A. `27 : 25`
B. `20 : 27`
C. `20 : 25`
D. `25 : 27`
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Correct Answer - B
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