Question

please help me with this question​

Answer 1

Answer:

I think the Poisson's ratio is 0.25.

Answer 2

Answer:

Option(1)

Explanation:

Longitudinal strain(Δl/l) = 20 * 10⁻³

Lateral Strain(ΔD/D) = 5 * 10⁻³

Then,

Poisson's ratio( = (Lateral Strain)/(Longitudinal strain)

                       = (5 * 10⁻³)/(20 * 10⁻³)

                      = 0.25

Hope it helps!