Question

Calculate the de Brogile wave length of proton moving with 5%of velocity of light

Answer 1

ANSWER

The expression for the de Broglie wavelength is λ=

mv

h

​

=

1.67×10

−27

×0.15×3×10

8

6.626×10

−34

​

=8.8×10

−15

Hence, the de Broglie wavelength for a proton with a velocity 15% of the speed of light is 8.8×10

−15

m