MCQ
For a given material, the Young's modulus is $2.4$ times that of rigidity modulus. Its Poisson's ratio is
- A$2.4$
- B$1.2$
- C$0.4$
- ✓$0.2$
✓
Answer
Correct option: D.
$0.2$
d
(d) $Y = 2\eta (1 + \sigma )$
(d) $Y = 2\eta (1 + \sigma )$
$2.4\eta = 2\eta (1 + \sigma ) \Rightarrow 1.2 = 1 + \sigma \Rightarrow \sigma = 0.2$
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