Question

Applying De Broglie equation calculate the wavelength associated with the motion of an electron with velocity of 2.5 x 10^7 ms-1

Answer 1

Explanation:

Multiplying the mass and speed, we obtain the momentum of the particle: p = mv = 2.7309245*10-24 kg·m/s . If we divide the Planck constant by the momentum, we will obtain the de Broglie wavelength: h/p = 6.6261*10-34 / 2.7309245*10-24 = 2.426*10-10 m .