QuestionElasticity / Young’s modulus
A steel rod having radius r and length L gets stretched along its length by ΔL, when a force F is applied to it. If another rod made of the same material having radius 2r and length L is subjected to the same force F, then the elongation observed for the second rod is
- (a) 4ΔL
- (b) 2ΔL
- (c) ΔL /4
- (d) ΔL /2
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