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  4. Which one of the following is not a unit of Young's modulus ?

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Q. Which one of the following is not a unit of Young's modulus ?

KCETKCET 2005

Solution:

$y=\frac{\text { stress }}{\text { strain }}= N / m ^{2}$ or pascal (in SI system)
and $y=\frac{\text { dyne }}{ cm ^{2}}$ (in CGS. system)
Thus, $Nm ^{-1}$ is not the unit of Young's modulus