A sample of hydrogen gas in its ground state is irradiated with photons of `10.02 eV` energies. The radiation from the above sample is used to irradiate two other sample of excited ionized `He^(+)` and excited ionized `Li^(2+)`, repectively. Both the ionized samples absorb the incident radiation. How many spectral lines are obtained in the spectra of `Li^(2+)`?A. `10`B. `15`C. `20`D. `17`

A sample of hydrogen gas in its ground state is irradiated with photon

1.	A sample of hydrogen gas in its ground state is irradiated with photons of `10.02 eV` energies. The radiation from the above sample is used to irradiate two other sample of excited ionized `He^(+)` and excited ionized `Li^(2+)`, repectively. Both the ionized samples absorb the incident radiation. How many spectral lines are obtained in the spectra of `Li^(2+)`?A. `10`B. `15`C. `20`D. `17`
Answer» Correct Answer - B `Li^(+2)` is excitation from `n=3` to `n=6` so, `N=15`

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