A-LevelPhysicsDeformation of solids9702/12 · Oct/Nov 2010 · Q211 Mark

Two wires P and Q are made from the same material. Wire P is initially twice the diameter and twice the length of wire Q. The same force, applied to each wire, causes the wires to extend elastically. What is the ratio of the extension in P to that in Q?

A1/2

✓ Correct answer

A: 1/2

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Topic: Deformation of solids, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2010 Paper 1 Variant 2, question 21.

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