Physics 9702 · AS & A Level · Stress and strain

Stress and strain — practice question

Wires X and Y are constructed from different metals. The Young modulus of wire X is twice the Young modulus of wire Y, and the diameter of wire X is half the diameter of wire Y. Both wires undergo the same strain and both obey Hooke’s law. What is the ratio $\dfrac{\text{tension in wire X}}{\text{tension in wire Y}}$?

  • A$\dfrac{1}{8}$
  • B$\dfrac{1}{2}$
  • C$1$
  • D$8$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI