MCQ
The unit of Young’s modulus is
- A$N{m^2}$
- ✓$N{m^{ - 2}}$
- C$Nm$
- D$N{m^{ - 1}}$
✓
Answer
Correct option: B.
$N{m^{ - 2}}$
b
The Young's modulus is given as;
The Young's modulus is given as;
$Y =\frac{\text { Stress }}{\text { Strain }}$
The unit of Young's modulus is same as that of the stress because the strain a dimensionless quantity.
So, unit of Young's modulus is same as stress i.e. $N / m ^2$.
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