Question

Copper of fixed volume 'V' is drawn into wire of length 'l'. When this wire is subjected to a constant force 'F', the extension produced in the wire is 'Δl'. Which of the following graphs is a straight line?

• A. Δl versus l2
• B. Δl versus $\frac{1}{l^2}$
• C. Δl versus l
• D. Δl versus $\frac{1}{l}$

Answer 1

Answer: (A)

Δl versus l2

Answer 2

The correct option (A): Δl versus l2