JEE Main 2025 Physics question

PhysicsElectrostatic Potential and CapacitanceJEE Main 2025

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 air craft 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 :

Answer: (3)

Solution

Metal body creates electrostatic shielding making field inside zero, protecting occupants; this explains the assertion.

Question ID VK-003050