Poisson's Ratio
Poisson's ratio is ratio of:
Select the correct option:
Solution
Lateral strain to longitudinal strain
When a material is stretched in one direction, it tends to contract in the directions perpendicular to the applied force. This effect is quantified by Poisson's Ratio (σ or ν): σ=−Longitudinal Strain (ΔL/L)Lateral Strain (Δd/d)
- For most common materials, σ lies between 0.2 and 0.4.
- Theoretical range for stable, isotropic linear elastic materials is −1<σ<0.5.
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About This Question
- Subject
- physics
- Chapter
- properties of solids and liquids
- Topic
- poisson's ratio
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Lateral strain to longitudinal strain
When a material is stretched in one direction, it tends to contract in the directions perpendicular to the applied force. This effect is quantified by Poisson's Ratio (σ or ν): σ=−Longitudinal Strain (ΔL/L)Lateral Strain (Δd/d)
- For most common materials, σ lies between 0.2 and 0.4.
- Theoretical range for stable, isotropic linear elastic materials is −1<σ<0.5.
This easy difficulty physics question is from the chapter properties of solids and liquids, covering the topic of poisson's ratio. It appeared in the 2025 exam.
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