NEET Physics Stress & Strain MCQ Question
Which of the following statements about hydraulic stress and volume strain is correct?
Hydraulic stress is equal to the applied hydraulic pressure, and volume strain is the ratio of change in volume to the original volume.
Hydraulic stress is always negative, while volume strain must be positive.
Volume strain has a unit of pressure, while hydraulic stress is dimensionless.
Hydraulic stress only occurs in solids and not in fluids when under pressure.
Correct Answer
Detailed Explanation
Hydraulic stress is defined as the internal restoring force per unit area, equal to the hydraulic pressure, and volume strain is the ratio of change in volume (∆V) to the original volume (V), which confirms option A as correct.
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