Given below are two statements: one is labelled as Assertion (A) and… | JEE Main 2025 (7 Apr, Shift 2)

Q27JEE Main 2025 · 7 APR · SHIFT 2Easy

Electric Flux & Gauss's Law

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): The outer body of an aircraft is made of metal which protects persons sitting inside from lightning strikes.

Reason (R): The electric field inside the cavity enclosed by a conductor is zero. In the light of the above statements, choose the most $-$ appropriate answer from the options given below:

Show answer and solution

Answer: (c)

A metal body acts as a closed conductor (electrostatic shielding).
The field inside a cavity enclosed by a conductor is zero, so the charge of a lightning strike stays on the outer skin.
Both are correct and R explains A, so the answer is (c).

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