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  • Ratio of the wavelengths of first line of Lyman series and first line of Balmer series isOption: 1 1: 3

Ratio of the wavelengths of first line of Lyman series and first line of Balmer series is

Option: 1

1: 3


Option: 2

27 : 5


Option: 3

5 : 27


Option: 4

4 : 9


Answers (1)

best_answer

\mathrm{\frac{1}{\lambda}=R\left(\frac{1}{n_1^2}-\frac{1}{n_2^2}\right)}
For first line of Lymen series \mathrm{n_1=1} and \mathrm{n_{2}=2}
For first line of Balmer series \mathrm{n_{2}=2} and \mathrm{n_{2}=3}

So, \mathrm{\frac{\lambda_{\text {Lymen }}}{\lambda_{\text {Balmer }}}=\frac{5}{27}}

Posted by

Divya Prakash Singh

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