An alpha particle is required to have a de Broglie wavelength of

PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation

Problem

1.0\,\text{fm}

. Determine the potential difference through which it must be accelerated from rest. \newline (Mass of alpha particle

= 6.64\times10^{-27}\,\text{kg}

, charge of alpha particle

= 3.2\times10^{-19}\,\text{C}

, Planck’s constant

h = 6.626\times10^{-34}\,\text{J s}