Physics (AS & A Level) · May / June 2026 · Paper 11 · Question 20

A metal wire is stretched by a tensile force. The tensile force is increased. The volume of the wire remains constant and the limit of proportionality is not exceeded. Which quantity remains constant?

1. Athe cross-sectional area of the wire
2. Bthe strain of the wire
3. Cthe stress in the wire
4. Dthe Young modulus of the metal

As printed in the paper