Assertion: On going away from a point charge or a small electric dipole, electric field decreases at the same rate in both the cases
Reason: Electric field is inversly proportional to square of distance from the charge or an electric dipole.

Options

A. if both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
B. If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.
C. if Assertion is true, but the Reason is false.
D. if both Assertion and Reason are false

Answer

D

Explanation

The rate of decrease of electric field is different in the two cases. In case of a point charge, it decreases as `1//r^(2)` but in the case of electric dipole it decreases move rapidly, as `E prop 1//r^(3)`.