Question

Calculate the de-Broglie wavelength associated with an electron with velocity 2.05  107ms–1 .

Answer 1

Explanation:

The wavelength of an electron is obtained from de-Broglie equation.

λ=

mv

h

=

9.11×10

−31

kg×2.05×10

7

m/s

6.626×10

−34

Js

=3.55×10

−11

m