1.

Velocity of the electron in electron microscope is 1.6xx106m//s.What would be the wavelenght of the electron

Answer»

`5.39 Å`
`4.55Å`
`3.54 Å`
6.78 Å`

SOLUTION :`v=1.6xx10^6m//s`
`m=9.1xx10^(-31)KG`
`lambda=h/(MV)= (6.625xx10^(-34))/(9.1xx10^(-31)xx1.6xx10)= 4.55Å`


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