One end of a steel wire of radius .r. is fixed to a ceiling and a load of 3 kg is attached to the free end of the wire. Another wire made of copper of radius .2r. is attached to the bottom of 3 kg load and a 2 kg load is attached to the free end of the copper wire. The ratio of longitudinal strains produced in copper and steel wires is (Young modulus of steel =20xx10^(10)Nm^(-2)) (Young modulus of copper =12xx10^(10)Nm^(-2))

One end of a steel wire of radius .r. is fixed to a ceiling and a load

1.	One end of a steel wire of radius .r. is fixed to a ceiling and a load of 3 kg is attached to the free end of the wire. Another wire made of copper of radius .2r. is attached to the bottom of 3 kg load and a 2 kg load is attached to the free end of the copper wire. The ratio of longitudinal strains produced in copper and steel wires is (Young modulus of steel =20xx10^(10)Nm^(-2)) (Young modulus of copper =12xx10^(10)Nm^(-2))
Answer» `6:1` `1:6` `2:3` `3:2` ANSWER :2