The electron in hydrogen atom in a sample is in `n^(th)` excited state, then the number of differrent spectrum lines obtained in its emission spectrum will beA. `1+2+3+"……….."+(n-1)`B. `1+2+3+"…………."+(n)`C. `1+2+3+"…………."+(n+1)`D. `1xx2xx3xx"…………"xx(n-1)`

The electron in hydrogen atom in a sample is in `n^(th)` excited state

1.	The electron in hydrogen atom in a sample is in `n^(th)` excited state, then the number of differrent spectrum lines obtained in its emission spectrum will beA. `1+2+3+"……….."+(n-1)`B. `1+2+3+"…………."+(n)`C. `1+2+3+"…………."+(n+1)`D. `1xx2xx3xx"…………"xx(n-1)`
Answer» Correct Answer - B `n^(th)` excited state `=.^(n+1)C_(2) =(n(n+1))/(2) =Sigma n`

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The electron in hydrogen atom in a sample is in `n^(th)` excited state, then the number of differrent spectrum lines obtained in its emission spectrum will beA. `1+2+3+"……….."+(n-1)`B. `1+2+3+"…………."+(n)`C. `1+2+3+"…………."+(n+1)`D. `1xx2xx3xx"…………"xx(n-1)`

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