railway RRB JE (CBT I + CBT II) Mock Test 2024 Strength of Materials Simple Stress and Strain Volumetric Strain
If the normal stress on a rectangular prismatic member in all the three directions are equal (= σ), then the ratio of volumetric strain to the (1 - 2μ) will be equal to
1
3σ
2
σ/E
3
3σ/E
4
3σE