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
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 be
A. `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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