Question

A hemispherical shell is uniformly charge positively .the electric field at point on a diameter away from the centre is directed
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 1

Correct Answer - A
When the point is on the diamater and away from the centre of hemisphere which is charged uniformly and positively, the component of electric field intensity parallel to the diameter cancel out. So the electric field is perpendicular to the diameter.