If a photon of energy $14$ eV is incident on an H-atom, what is true?

Atom will be ionised and electron will have a kinetic energy of

14

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Atom will be ionised and electron will have a kinetic energy of

0.4

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Photon passes through atom without interacting with it

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None of these

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Solution

The correct option is A Atom will be ionised and electron will have a kinetic energy of $0.4$ eV
If photon of energy $14 e v$ is incident on an H-atom. Atom will be ionised and electron will have a kinetic energy of $0.4 e v$
Difference = $14. e v - 13.6 e v$
$4. e v$

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If a photon of energy 14 eV is incident on an H-atom, what is true?

The correct option is A Atom will be ionised and electron will have a kinetic energy of 0.4 eVIf photon of energy 14ev is incident on an H-atom. Atom will be ionised and electron will have a kinetic energy of 0.4evDifference =14.ev−13.6ev4.ev

If a photon of energy $14$ eV is incident on an H-atom, what is true?

The correct option is A Atom will be ionised and electron will have a kinetic energy of $0.4$ eV
If photon of energy $14 e v$ is incident on an H-atom. Atom will be ionised and electron will have a kinetic energy of $0.4 e v$
Difference = $14. e v - 13.6 e v$
$4. e v$