NEET 2022 · PhysicsPrevious Year Question
Given below are two statements: Statement I: The stretching of a coil spring is determined by the shear modulus of the material of the spring. Statement II: A coil spring of copper has more tensile strength than a steel spring of same dimensions. In the light of the above statements, choose the most appropriate answer from the options given below:
Answer: (C) Statement I is correct and Statement II is incorrect. Correct Answer (C): Statement I is correct and Statement II is incorrect Statement I is correct: a coil spring is stretched mainly by twisting of its wire, governed by the shear modulus.
- 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 II is correct and Statement I is incorrect
Correct Answer
(C) Statement I is correct and Statement II is incorrect
Solution & Explanation
Correct Answer (C): Statement I is correct and Statement II is incorrect Statement I is correct: a coil spring is stretched mainly by twisting of its wire, governed by the shear modulus. Statement II is incorrect: steel has greater tensile strength than copper, so a steel spring is stronger. Hence Statement I correct, Statement II incorrect. (NEET 2022, 2022)
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