Question

Given the de Broglie wavelength of an electron is 1Å. Find the velocity of the electron.

Answer 1

Answer:

7.3 × 10⁶ m / s

Explanation:

λ = h/mv

∴v = h/mv  

= 6.63 × 10⁻³⁴/9 × 10⁻³¹ × 1 × 10⁻¹⁰

= 7.3 × 10⁶ m / s