A double ionised lithium atom is hydrogen like with atomic number `3` (i)Find the wavelength of the radiation to excite the electron in `Li^(++)`from the first to the third bohr orbit (lonisation energy of the hydrogen atom equals `13. 6eV` (ii) How many spectral lines are observed in the emission spectrum of the above excited system ?

A double ionised lithium atom is hydrogen like with atomic number `3`

1.	A double ionised lithium atom is hydrogen like with atomic number `3` (i)Find the wavelength of the radiation to excite the electron in `Li^(++)`from the first to the third bohr orbit (lonisation energy of the hydrogen atom equals `13. 6eV` (ii) How many spectral lines are observed in the emission spectrum of the above excited system ?
Answer» Correct Answer - `[(a) 113.7Å (b)3]`

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