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What will be the wavelength of an electr...

What will be the wavelength of an electron moving with 1/10th of velocity of light?

A

`2.43xx10^(-11)`m

B

`243xx10^(-11)`m

C

0.243 m

D

`2.43xx10^(-4)`m

Text Solution

Verified by Experts

The correct Answer is:
A
`v=(3xx10^(8))/10=3xx10^(7)ms^(-1)
lambda=h/(mv)=(6.626xx10^(-34)Js)/(9.1xx10^(-31)kgxx3xx10^(7)ms^(-1))
=2.43xx10^(-11)m`
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