The de broglie wavelength of electron mo...

The de broglie wavelength of electron moving with kinetic energy of 144 eV is nearly

A

`102 xx 10^(-4)nm`

B

`102 xx 10^(-5)`nm

C

`102 xx 10^(-2)`nm

D

`102 xx 10^(-3)`nm

Verified by Experts

The correct Answer is:

D

`lambda = (12.27)/(sqrt(v)) Å = (12.27)/(sqrt(144))Å = 1.02 xx 10^(-10)m = 102 xx 10^(-3)m`

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