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Given below are two statements:Assertion (A): The stretching of a spring is determined by the shear modulus of the material of the spring.Reason (R): A coil spring of copper has more tensile strength than a steel spring of same dimensions.

  1. A
    Both Statement I and Statement II are correct
  2. B
    Both Statement I and Statement II are incorrect
  3. C
    Statement I is correct and Statement II is incorrect
  4. D
    Statement I is incorrect but Statement II is correct

Solution & Step-by-step Explanation

1. Assertion is correct: When a coil spring is stretched, the wire undergoes twisting, which involves shear strain. Therefore, the spring constant and stretching behavior depend on the shear modulus.2. Reason is incorrect: Steel is much more elastic and has higher tensile strength than copper.

Practice this question

Try it yourself before checking the explanation above.

Given below are two statements:Assertion (A): The stretching of a spring is determined by the shear modulus of the material of the spring.Reason (R): A coil spring of copper has more tensile strength than a steel spring of same dimensions.
A
Both Statement I and Statement II are correct
B
Both Statement I and Statement II are incorrect
C
Statement I is correct and Statement II is incorrect
D
Statement I is incorrect but Statement II is correct

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