A double charged lithium atom is equivalent to hydrogen whose atomic number is 3 . The wavelengt...

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A double charged lithium atom is equivalent to hydrogen whose atomic number is 3 . The wavelength of required radiation for emitting electron from first to third Bohr orbit in \( \mathrm{Li}^{++} \)will be (Ionisation energy of hydrogen atom is \( 13.6 \mathrm{eV}) \)
(A) \( 182.51 \AA \)
(B) \( 177.17 \AA \)
(C) \( 142.25 \AA \)
(D) \( 113.74 \AA \)
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