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Physics (AS & A Level) · May / June 2025 · Paper 14 · Question 17

9702Stress and strain

What is the definition of strain?

  1. Aextension per unit cross-sectional area
  2. Bextension per unit original length
  3. Cforce per unit cross-sectional area
  4. Dforce per unit extension

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Correct answer: B. extension per unit original length

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