Mechanical Properties Of Solids

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