1.

Given Rydberg costant` R = 10^(5)cm^(-1)`. Supposing if electron jumps from M shell to K shell of H - atom, the frequency of the radiation emitted in cycle/s would be :-A. `(8)/(9)xx10^(5)`B. `(8)/(3)xx10^(15)`C. `(8)/(3)xx10^(11)`D. `(8)/(9)xx10^(15)`

Answer» Correct Answer - B
`u=RCZ^(2)((1)/(1^(2))-(1)/(3^(2)))`
`=10^(7)xx3xx10^(8)xx(8)/(9)=(8)/(3)xx10^(15)`


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