A hemispherical shell is uniformly charge positively .the electric field at point on a diameter away from the centre is directed

Options

A. perpendicular to the diameter.
B. parallel to the diameter.
C. at an angle tilted towards the diameter.
D. at an angle tilted away from the diameter.

Answer

A

Explanation

As the side or diameter of hemisphere is plane surface, and whole hemisphere is charged with positive charge so, the electric field line of forces emerging outward will be perpendicular to the plane surface or diameter.