Physics

Problem

A proton is accelerated from rest through a potential difference of

500\,\text{V}

. Calculate its de Broglie wavelength. (Take Planck’s constant

h = 6.63\times10^{-34}\,\text{J s}

, proton mass

m_p = 1.67\times10^{-27}\,\text{kg}

and elementary charge

e = 1.6\times10^{-19}\,\text{C}

.) a)

0.41\,\text{pm}

2.6\,\text{pm}

1.3\,\text{pm}

1.8\,\text{pm}