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Bohr's Model of Atom

The energy re...

Question

The energy required to dislodge electron from excited isolated H-atom, $I E_{1} = 13.6$ eV is?

A

= 13.6

eV

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B

> 13.6

eV

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C

< 13.6

and

> 3.4

eV

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D

\leq 3.4

eV

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Solution

The correct option is A $= 13.6$ eV
Because $H -$ atom has only one $e^{-}$ and its' ionisation energy is given as $13.6 e V$ so energy required is greater than equal to 13.6 eV and 13.6 eV is the minimum energy required to dislodge the electron.

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