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If each hydrogen atom in the ground stat...

If each hydrogen atom in the ground state `1.0 mol of H ` atom are excited by axeited by absorbing photon of energy `8.4 eV, 12.09 eV and 15.0 eV` of energy, then number of spectral lines emitted is equal to

A

none

B

two

C

three

D

four

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The correct Answer is:
C
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