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JEE Main2012PhysicsLaws of MotionActual

This question has statement 1 and statement 2 . Of the four choices given after the statements, choose the one that best describes the two statements. If two springs S₁ and S₂ of force constants k₁ and k₂ , respectively, are stretched by the same force, it is found that more work is done on spring S₁ than on spring S₂ . Statement 1 : If stretched by the same amount, work done on S ₁ , will be more than that on S ₂ St

Options

  1. AStatement 1 is false, Statement 2 is true
  2. BStatement 1 is true, Statement 2 is false
  3. CStatement 1 is true, Statement 2 is the correct explanation for statement 1
  4. DStatement 1 is true, Statement 2 is true, Statement 2 is not the correct explanation for statement 1 .

Correct answer

A. Statement 1 is false, Statement 2 is true

Step-by-step solution

F = K ₁ S ₁= K ₂ S ₂ W ₁= FS ₁, ~W ₂= FS ₂ K ₁ S ₁ ^2> K ₂ S ₂^2 S ₁> S ₂ K ₁ < K ₂ W K W ₁ < W ₂

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