If doubly ionised lithium atom is hydrogen like with atomic number 3, the wavelength

If doubly ionised lithium atom is hydrogen like with atomic number 3, the wavelength of radiation required to excite the electron in Li⁺⁺ from the first to the third Bohr orbit and the number of different spectral lines observed in the emission spectrum of the above excited system are

Options

(a) 296 Å, 6
(b) 114 Å, 3
(c) 1026 Å, 6
(d) 8208 Å, 3

Correct Answer:

114 Å, 3

Explanation:

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