Which one of the following physical quantities does not have the dimensions of force per unit area?
Correct answer: B. Strain
- A. Stress
- B. Strain
- C. Young modulus
- D. Pressure
Explanation
Explanation: Strain is a dimensionless quantity that represents the relative deformation or change in shape of a material due to stress. It is defined as the change in length per unit length and does not have the dimensions of force per unit area. Mathematically ε = Δ x/x,
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