JEE Physics · Medium

Elasticity, Thermal Expansion, Calorimetry and Heat Transfer: Poisson's Ratio MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Poisson's RatioMediumQuestion 30810

Question

Poisson's ratio is:
  1. A
    Longitudinal strain / Lateral strain
  2. B
    Lateral strain / Longitudinal strain
    Correct
  3. C
    Stress / Strain
  4. D
    Strain / Stress

Correct answer

Lateral strain / Longitudinal strain

Explanation

Poisson's ratio σ = −(lateral strain)/(longitudinal strain); the negative sign accounts for the opposite direction.