KCET · Physics · Mechanical Properties of Solids
Young's modulus of a perfect rigid body is
- A zero
- B unity
- C infinity
- D Between (a) and (b)
Answer & Solution
Correct Answer
(C) infinity
Step-by-step Solution
Detailed explanation
For a perfect rigid body, strain is always zero, for all values of stress.
As, Young's modulus, \(Y=\frac{\text { Normal stress }}{\text { I.ongitudinal strain }}\)
So, its Young's modulus would be infinity.
As, Young's modulus, \(Y=\frac{\text { Normal stress }}{\text { I.ongitudinal strain }}\)
So, its Young's modulus would be infinity.
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