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hardMCQAIEEE 20122026Physics
1 mark

If two springs and of force constants and , respectively, are stretched by the same force, it is found that more work is done on spring than on spring .Statement 1: If stretched by the same amount, work done on , will be more than that on .Statement 2: .

  1. A
    Statement 1 is false, Statement 2 is true
  2. B
    Statement 1 is true, Statement 2 is false
  3. C
    Statement 1 is true, Statement 2 is the correct explanation for statement 1
  4. D
    Statement 1 is true, Statement 2 is true, Statement 2 is not the correct explanation for statement 1

Solution & Step-by-step Explanation

Work done on a spring when stretched by a force is .Given for the same force :

So, Statement 2 is true.Now, if they are stretched by the same amount , the work done is .Since , then will be less than .Therefore, Statement 1 is false.

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If two springs and of force constants and , respectively, are stretched by the same force, it is found that more work is done on spring than on spring .Statement 1: If stretched by the same amount, work done on , will be more than that on .Statement 2: .
A
Statement 1 is false, Statement 2 is true
B
Statement 1 is true, Statement 2 is false
C
Statement 1 is true, Statement 2 is the correct explanation for statement 1
D
Statement 1 is true, Statement 2 is true, Statement 2 is not the correct explanation for statement 1

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