Electrons accelerated through a potential difference,

PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation

Problem

V

, will acquire a de Broglie wavelength,

\lambda

. Which of the following de Broglie wavelengths will electrons acquire if they are accelerated through a potential difference of 4V? (1)

\frac{\lambda}{4}

(2)

\frac{\lambda}{2}

(3)

2\lambda

(4)

4\lambda