Physics · Oct / Nov 2021 · Paper 12 · Question 9
A metal wire is stretched by a force F up to the limit of proportionality. Which statement describes what happens when F is increased slightly?
- AThe wire breaks.
- BThe wire continues to extend but not in direct proportion to F.
- CThe wire continues to extend in direct proportion to F.
- DThe wire does not extend any further.
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Correct answer: B. The wire continues to extend but not in direct proportion to F.
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