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The ratio of the longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is

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The ratio of the longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is

(1) 9/31

(2) 5/27

(3) 3/23

(4) 7/29

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Best answer

Correct option : (2) 5/27

Explanation :

According to the relation 

the longest wavelength is obtained when the transition take place from a quantum state one higher than the quantum state where the series terminates. 

Hence for Lyman series

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