A spring is stretched by applying a load to its free end. The strain produced in the spring is 

(a) volumetric.

(b) shear. 

(c) longitudinal and shear. 

(d) longitudinal.

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3 Answers

(c) longitudinal and shear.

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(c) According to the diagram where a spring is suspended with a fixed rigid support. Now a load is attached with the lower end of that spring. So, it is stretched by applying a load to its free end. Clearly the length and shape of the spring changes and the weight of the load behaves as a deforming force.
The change in length corresponds to longitudinal strain and change in shape corresponds to shearing strain.

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(4) Longitudinal & Shear

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