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A photon of energy 15eV collides with H-...

A photon of energy `15eV` collides with `H-`atom. Due to this collision, `H-`atom gets ionized. The maximum kinetic energy of emitted elecrtron is:

A

`1.4eV`

B

`5 eV`

C

`15eV`

D

`13.6eV`

Text Solution

Verified by Experts

The correct Answer is:
A
Energy of photon ionization energy
+ `K.E _("max")=15eV-13.6eV=1.4ev`
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