2025 · Q115
Consider the following statements regarding mechanical properties of solids:
- 1The ratio of tensile stress to longitudinal strain is defined as bulk modulus.
- 2The ratio of hydraulic stress to corresponding hydraulic strain is called Young's modulus.
- 3The ratio of shearing stress to corresponding shearing strain is called modulus of rigidity.
Which of the statements given above is/are correct?
general-sciencephysics-mechanics
- A1 and 2 only
- B2 and 3 only
- C3 only
- D1, 2 and 3
Explanation
The ratio of tensile stress to longitudinal strain is Young's modulus (not bulk modulus), so statement 1 is wrong. The ratio of hydraulic stress to hydraulic strain is the bulk modulus (not Young's modulus), so statement 2 is wrong. The ratio of shearing stress to shearing strain is indeed the modulus of rigidity, so statement 3 is correct. Hence only statement 3 is correct.