Find the fractional increase in the volume of a wire of circular cross section if its longitudinal strain is 2%. (sigma=0.4)

Find the fractional increase in the volume of a wire of circular cross

1.	Find the fractional increase in the volume of a wire of circular cross section if its longitudinal strain is 2%. (sigma=0.4)
Answer» 0.004 0.002 0.001 0.005 Answer :1