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The energy required to separate a hydrog...

The energy required to separate a hydrogen atom into a proton and an electron is `1.6eV` then the velocity of electron in a hydrogen atom is

A

`2.2xx10^(4)m//s`

B

`2.2xx10^(2)m//s`

C

`2.2xx10^(6)m//s`

D

`2.2xx10^(10)m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
Velocity of revolving electron electron is given as `(mv^2)/r=1/(4piepsilon_(0)) e^(2)/r^(2),thereforeV=(e)/sqrt(4piepsilon _(0) mr)`
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