નીચે પૈકી કયો યંગ મોડ્યુલસનો એકમ નથી?
$N{m^{ - 1}}$
$N{m^{ - 2}}$
$Dyne\;c{m^{ - 2}}$
મેગા પાસ્કલ
નીચે પૈકી કયો યંગ મોડ્યુલસનો એકમ નથી?
Young's modulus $\quad Y =\frac{\text { Stress }}{\text { Strain }}$
As we know, strain is a dimensionless quantity whereas stress is defined as force per unit area.
Stress has units as $Nm ^{-2}$ (SI unit), Dyne $cm ^{-2}$ (cgs unit) or Pascal $( P a)$.
As Young's modulus has same unit as that of stress, thus $Nm ^{-1}$ is not a unit of Young's modulus.
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