Question

Find the momentum of the electron having de Broglie wavelength of 0.5 A.

Answer 1

Data: λ = 0.5 Å = 5 × 10⁻¹¹ m, h = 6.63 × 10⁻³⁴ J.s

The momentum of the electron,

`p = h/λ`

= `(6.63 xx 10^-34)/(5 xx 10^-11)`

= 1.326 × 10⁻²³ kg.m/s