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COMEDK Exam 2020 Solved Paper

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Question : 39

Total: 180

A steel wire of length 4.7m and cross-sectional area 3.0×10−5m2 stretches by the same amount as a copper wire of length 3.5m and cross-sectional area of 4.0×10−5m2 under a given load. What is the ratio of Young's modulus of steel to that of copper?

1.8:1
2.8:1
3.8:1
4.8:1

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