When load is applied to a wire, the extension is 3 mm, the extension in the wire of same length but half the radius by the same load is
A. 0.75 mm
B. 6 mm
C. 1.5 mm
D. 12.0 mm
Answer:D
When load is applied to a wire, the extension is 3 mm, the extension in the wire of same length but half the radius by the same load is
A. 0.75 mm B. 6 mm C. 1.5 mm D. 12.0 mm