COMEDK · Physics · 10. Mechanical Properties of Solids
Select the correct statement from the following:
- A The bulk modulus of an ideal liquid is zero
- B Rubber is more elastic than steel
- C Shear modulus of an ideal liquid is infinite
- D The bulk modulus of a perfect rigid body is infinite
Answer & Solution
Correct Answer
(D) The bulk modulus of a perfect rigid body is infinite
Step-by-step Solution
Detailed explanation
The bulk modulus \(B\) is defined as \(B = -V \dfrac{dP}{dV}\). For a perfectly rigid body, the change in volume \(dV\) is zero for any applied pressure \(dP\). Thus, \(B = -V \dfrac{dP}{0} = \infty\). Regarding other options: The bulk modulus of an ideal liquid is finite and…
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