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1900's Physics and Wave

The energy le...

Question

The energy levels of a hypothetical one electron atom are shown in the figure above. Find the ionization potential of the atom?

A

11.2 e V

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B

13.5 e V

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C

15.6 e V

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D

12.6 e V

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Solution

The correct option is C $15.6 e V$
Ionisation potential is the energy required to take the electron from the ground state to infinity (outside the influence of nucleus)
$I E = E (n = \infty) - E (n = 1) = 15.6 e V$

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