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JEE Main 20257 AprilEvening Shift
Exam
JEE Main
Year
2025
Date
7 April
Shift
Evening Shift
Subject
Physics
Chapter
Electrostatics

JEE Main 2025 · 7 April · Evening Shift · Physics · Electrostatics

Given below are two statements: one is labelled as Assertion (A)...

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, chose the most appropriate answer from the options given below :

Options

  1. ABoth (A)(\mathrm{A}) and (R)(\mathrm{R}) are correct and (R)(\mathrm{R}) is the correct explanation of (A)(\mathrm{A})
  2. B(A)(\mathrm{A}) is correct but (R)(\mathrm{R}) is not correct
  3. CBoth (A)(\mathrm{A}) and (R)(\mathrm{R}) are correct but (R)(\mathrm{R}) is not correct explanation of (A)
  4. D(A) is not correct but (R)(\mathrm{R}) is correct

Correct answer

A. Both (A)(\mathrm{A}) and (R)(\mathrm{R}) are correct and (R)(\mathrm{R}) is the correct explanation of (A)(\mathrm{A})

Step-by-step solution

Electric field of outside charge is zero inside conductor
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