Assertion :- \( A \) point charge \( q \) is placed inside a cavity...

Assertion :- \( A \) point charge \( q \) is placed inside a cavity of conductor as shown. Another point
\( \mathrm{P} \) charge \( Q \) is placed outside the conductor as shown.

W Now as the point charge \( Q \) is pushed away from conductor, the potential difference \( \left(V_{A}-V_{B}\right) \) between two points \( A \) and \( B \) within the cavity of
- sphere remains constant.
Reason :- The electric field due to charges on outer surface of conductor and outside the conductor is zero at all points inside the conductor.
(a) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(b) Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
(c) Assertion is correct but Reason is incorrect.
(d) Assertion is incorrect but Reason is correct.