Question) A steel wire of length 5.0 m and cross - section 3 . 0 × 10 - 5   m 2 stretches by the same amount as a copper wire of length 3.0 m and cross - section 4 . 0 × 10 - 5   m 2 under a given load. What is the ratio of Young' s modulus of steel to that of copper?

Dear Student ,


l=5m,A=3*10-5m2Ysteel=5F3*10-5*lYCu=3F4*10-5*lYsteelYCu=5*4*10-53*3*10-5=209Regards

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