A particle of mass $m$ and charge $+q$ is projected into a uniform electric field with speed $v$. At the start, its velocity is at right angles to the electric field. As it passes through the field, it is displaced by distance $d$, as shown. A second particle with mass $2m$, charge $+q$ and speed $v$ enters the electric field along the same route. What distance is this particle deflected by in the electric field?
- A$\frac{d}{4}$
- B$\frac{d}{2}$
- C$2d$
- D$4d$