A-LevelPhysicsDeformation of solids9702/12 · May/June 2012 · Q251 Mark
A wire stretches 8 mm under a load of 60 N. A second wire of the same material, with half the diameter and a quarter of the original length of the first wire, is stretched by the same load. Assuming that Hooke's law is obeyed, what is the extension of this wire?
A1 mm
B4 mm
C8 mm
D16 mm
✓ Correct answer
C: 8 mm
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