An electron of mass m and charge e is accelerated from rest throu… - Vidyadip

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
$2 \mathrm{eV}/\mathrm{m}$

✓

Answer

Correct option: C.

$\sqrt{2 \mathrm{eV} / \mathrm{m}}$

$\sqrt{2 \mathrm{eV} / \mathrm{m}}$

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