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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS
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Medium
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Analyzing
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Given below are two statements : One is labelled as, Assertion (A) and the other is labelled as Reason (R)
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.
In the light of the above statements, choose the most, appropriate answer from the options given below
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.
In the light of the above statements, choose the most, appropriate answer from the options given below
View answer and explanation
Correct option: D
(A) is true but (R) is false
Option D is correct. The stretching of a spring is determined by the shear modulus because it involves a change in shape, and copper has less tensile strength than steel.
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