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An electron in an excited state of hydro...

An electron in an excited state of hydrogen atom absorbs 2.5 times the energy needed to unbound the electron and moves with a wavelength of 5.416 Å `(h = 6.6xx10^(-34) `Js`)`
The kinetic energy of the electron is

A

3.4 eV

B

5.1 eV

C

13.6 eV

D

10.2 eV

Text Solution

Verified by Experts

The correct Answer is:
B
`E= hupsilon + 1/2 mv^2 , x xx 2.5 = x + (hc)/(lambda)`
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