MCQ
An electron of mass m and charge e is accelerated from rest through a potential difference V in vacuum. The final speed of the electron will be
- A$\mathrm{V} \sqrt{\mathrm{e} / \mathrm{m}}$
- B$\sqrt{\mathrm{eV} / \mathrm{m}}$
- ✓$\sqrt{2 \mathrm{eV} / \mathrm{m}}$
- D$2 \mathrm{eV}/\mathrm{m}$
