Question

Given that a proton of mass 1.6726 × 10-27 kg has a wavelength of 2.426*10-10 m, calculate the velocity of the proton.

Answer 1

de Broglie's wave equation ... λ = h m v ... v = λ / (h m)

h is Planck's constant ... 6.626 × 10-34 m2 kg / s

calculator time ...