Physics 9702 · AS & A Level · Stress and strain

Stress and strain — practice question

The Young modulus of steel is measured with a steel wire of length and is found to be $E$. A second experiment is then performed with a wire made of the same steel, but with half the length and half the diameter. What value is obtained for the Young modulus in the second experiment?

  • A$\frac{1}{2}E$
  • B$E$
  • C$2E$
  • D$4E$

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