﻿ 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? from Physics Mechanical Properties of Solids Class 11 Manipur Board

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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?

Length of steel wire, L= 4.7m
Length of copper wire, Lc=3.5m
Area of cross-section of steel wire, As=3.0 x 10-5 m2
Area of copper wire, A= 4.0 x 10-5 m

To find = the ratio of Young's modulus of steel to that of copper?

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