Q146 / 150 · MHT CET 2021 (20 Sep Shift 2) · Physics

A charge of magnitude ' $2 \mathrm{e}$ ' and mass ' $4 \mathrm{~m}$ ' is moving in an electric Field E. The acceleration imparted to the above charge is

  • A
    $\frac{2 \mathrm{~m}}{3 \mathrm{Ee}}$
  • Correct answer
    B
    $\frac{E e}{2 m}$
  • C
    $\frac{2 \mathrm{Ee}}{3 \mathrm{~m}}$
  • D
    $\frac{3 \mathrm{~m}}{2 \mathrm{Ee}}$

Solution

Force, $\mathrm{F}=$ charge $\times$ Electric field $=2 \mathrm{eE}$ $$ \text { Acceleration }=\frac{\text { Force }}{\text { Mass }}=\frac{2 \mathrm{eE}}{4 \mathrm{~m}}=\frac{\mathrm{eE}}{2 \mathrm{~m}} $$

Hence, the correct answer is option: 'B'.

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