Question

Calculate the wavelength of radiation emitted, producing a line in Lyman series, when an electron falls from fourth stationary state in hydrogen atom. 10282 8 2 9.7x10- arhit that has its radins sixteen times the radius of first

JEE/Engineering Exams

Chemistry

Solution

365

5.0 (1 ratings)

( frac{1}{lambda}=R_{H}left[frac{1}{n_{1}^{2}}-frac{1}{n_{2}^{2}}right] ) ( R_{H}=1.1 times 10^{7} ) for Lyman series ( n_{1}=1 ) and ( n_{2}=4 ) (Given) ( therefore frac{1}{lambda}=1.1 times 10^{7}left[frac{1}{1^{2}}-frac{1}{4^{2}}right] ) ( lambda=0.9696 times 10^{-7} mathrm{m} ) Hence (b) is the correct answer.