Question 314: Properties of Matter

Question

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:

Accepted Answer

It is true that stretching of spring is determined by shear modulus of the spring as when coil spring is stretched neither its length nor its volume changes, there is only change in its shape.
Tensile strength of steel is more than that of copper.
Hence Assertion is true and Reason is false.

Answer

Both (A) and (R) are true and (R) is the correct explanation of (A)

Answer

Both (A) and (R) are true and (R) is not the correct explanation of (A)

Answer

(A) is true but (R) is false

Answer

(A) is false but (R) is true

Properties of Matter

Choose the correct answer: