[MCQ/EM-04002] EM-PROBLEM

A charged particle is at a distance \( d\) from an infinite conducting plane maintained at zero potential. When released from rest, the particle reaches a speed \( u\) at a distance \( d/2\) from the plane. At what distance from the plane will the particle reach the speed \( 2u\)?

1.    \( d/6 \)
2.    \( d/3 \)
3.    \( d/4 \)
4.    \( d/5 \)