A steet wire of length 4.7 m and cross -...

A steet wire of length 4.7 m and cross - sectional area `3.0xx10^(-5)m^(2)` stretches by the same amount as a copper wire of length 3.5 m and cross- sectional area of `4.0xx10^(-5)m^(2)` under a given load. What is the ratio of the Young's modulus of steel to that of copper ?

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The correct Answer is:

1.8

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