Assertion: If a dielectric is placed in external field then field inside dielectric will be less than applied field.
Reason: Electric field will induce dipole moment opposite to field direction.

Options

A. If both assertion and reason are true and reson is the 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 the assertion is true but the reason are false.
D. If both the assertion and reason are false.

Answer

C

Explanation

Dipole moment will be in the same direction as the external field. The collective effect of dipole moments produces a field that oppose the external field and hence, the net electric field inside the dielectric is less than the external electric field.