A point charge +q, is placed at a distance d from an isolated conducting plane. The field at a point P on the other side of the plane is
A. directed perpendicular to the plane and away from the plane.
B. directed perpendicular to the plane but towards the plane.
C. directed radially away from the point charge.
D. directed radially towards the point charge.
The answer is the option (a)
Explanation: The electric field lines are always parallel to the conducting plane; therefore, the lines here will be and directing away from the plane. There are no conducting lines inside the conductor. Hence, (a) is correct.