The minimum wavelength of X-rays produced by electrons accelerated by a potential difference of volts is equal to

• A

  $\frac{\mathrm{eV}}{\mathrm{hc}}$

• B

  $\frac{\mathrm{eh}}{\mathrm{cV}}$

• C

  $\frac{\mathrm{hc}}{\mathrm{eV}}$

• D

  $\frac{\mathrm{cV}}{\mathrm{eh}}$