Question

calculate the brogile wavelength for
electrons moving
with a speed of 4 x 10⁵m/s​

Answer 1

Answer:

By de-Broglie's theory, the wavelength of any particle λ=

p

h

and p=m

V

∴λ=

m

V

h

V

=

5

c

=

5

3×10

8

∴λ=

9×10

−31

×3×10

8

6.63×10

−34

×5

=1.23×10

−11

m

Answer:- 1.23×10

−11

metres.