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 ?

A steet wire of length 4.7 m and cross - sectional area 3.0xx10^(-5)m^

1.	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 ?
Answer» ANSWER :1.8