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

Given data: Distance = d, and Charge = q 

Concept Used: Electric field 

Detailed Solution:

There are some negative charges are developed on the surface of the plane towards the charges and on the opposite side of plane there are equal positive charge develops 

Hence, the field is perpendicular to the plane and away from the plane at a point p.

Shown Fig gives an idea about the solution: 

So there will be a field directed perpendicular to the plane and away from the plane.