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The kinetic energy of an electron in hyd...

The kinetic energy of an electron in hydrogen atom is `3.40 eV`.The minimum energy required to ionise the hydrogen atom is

A

`-3.40eV`

B

`6.40 eV`

C

`-6.80 eV`

D

`3.40 e V`

Text Solution

Verified by Experts

The correct Answer is:
D
Given,`KE=3.40 eV`
So, total energy=`-3.40 eV`
When H-atom is ionised, its minimum total energy will become zero.
So,ionisation energy =`-(-3.40)=3.40eV`
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