# A wire whose cross-sectional area is 4mm^(2) is streched by 0.1mm by a certain load. If a similar wire of double the area of cross-section is unde

40 views
in Physics
A wire whose cross-sectional area is 4mm^(2) is streched by 0.1mm by a certain load. If a similar wire of double the area of cross-section is under the same load, then the elongation would be
A. 0.5mm
B. 0.05mm
C. 0.005mm
D. 5mm

by (85.6k points)
e = (Fl)/(AY) = (Mgl)/(AY), e alpha (1)/(A)