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Ionisation potential fo hydrogen atomn i...

Ionisation potential fo hydrogen atomn is ` 13 . 6 eV`. Hydrogen atom in the groun state ae exctred by monochromatic light fo enrgy ` 12. 1 eV` . The spectral lines emitted by hydrogen according to Bohr`s theoury will be.

A

One

B

Two

C

Three

D

four

Text Solution

Verified by Experts

The correct Answer is:
C
The electron in H-atom is excited fo III shell after absorbing ` 12. 1eV`, because .
` E_(3 )- E_(1) = (- 13.6)/(9) + 13 . 6 = 12 .1`
Thus possible transitions are ` sum ( 3 - 1)=3`.
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