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JEE Main 202528 JanuaryMorning Shift
Exam
JEE Main
Year
2025
Date
28 January
Shift
Morning Shift
Subject
Physics
Chapter
Work, Power and Energy

JEE Main 2025 · 28 January · Morning Shift · Physics · Work, Power and Energy

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

Given below are two statements: one is labelled as Assertion A\mathbf{A} and the other is labelled as Reason R\mathbf{R} Assertion A: In a central force field, the work done is independent of the path chosen. Reason R: Every force encountered in mechanics does not have an associated potential energy. In the light of the above statements, choose the most appropriate answer from the options given below

Options

  1. AA\mathbf{A} is false but R\mathbf{R} is true
  2. BBoth A\mathbf{A} and R\mathbf{R} are true but R\mathbf{R} is NOT the correct explanation of A\mathbf{A}
  3. CA\mathbf{A} is true but R\mathbf{R} is false
  4. DBoth A\mathbf{A} and R\mathbf{R} are true and R\mathbf{R} is the correct explanation of A\mathbf{A}

Correct answer

B. Both A\mathbf{A} and R\mathbf{R} are true but R\mathbf{R} is NOT the correct explanation of A\mathbf{A}

Step-by-step solution

Assertion is correct as central forces are conservative in nature, i.e. work done is independent of path. Reason is true as some forces in mechanics like, friction are non-conservative because work done depends on path and only conservative forces have an associated potential energy. Also, reason does not explain assertion.
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