Question

15. Calculate the ratio between the wavelength of an electron and a proton if the proton is moving with half the
velocity of electron (Mass of proton = 1.67 x 10-27 kg and mass of electron = 9.11 x 10-5 kg)
​

Answer 1

Answer:

Apply de Broglie equation, λ=

mv

h

Wavelength of electron =

9.11×10

−31

v

6.625×10

−34

Wavelength of proton =

1.67×10

−27

×0.5v

6.625×10

−34

.

Hence the ratio comes out to be 9.2455×10

−2

m.