2.20 Calculate the wavelength of an electron moving with a velocity of 2.05 × 107 m s–1.
According to de Broglie’s equation,
Where, λ = wavelength of moving particle m = mass of particle v = velocity of particle h = Planck’s constant Substituting the values in the expression of λ:
Hence, the wavelength of the electron moving with a velocity of 2.05 × 107 m/s is 3.548 × m.
