Question

In a certain region, uniform electric field exists as $\overrightarrow{E}=E_0\hat{j}.$ A proton and an electron are projected from origin at time $t=0$ with certain velocities along $+x$-axis direction. Due to the electric field, they experience force and move in the $xy$-plane along different trajectories.

$\left(i\right)$ The path followed by the particles will be a

• A. parabola
• B. circular
• C. hyperbola
• D. spiral

Answer 1

The correct option is A parabola

Since the acceleration provided by the electric field is perpendicular to the initial velocity of the particles, the path followed will be a parabola.

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, $\left(A\right)$ is the correct answer.