Which one of the following quantities does not have the unit of force per unit area
A
Stress
B
Strain
C
Young's modulus of elasticity
D
Pressure
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B
Strain
b (b)Because strain is a dimensionless and unitless quantity.
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An increases in pressure required to decreases the $200\,litres$ volume of a liquid by $0.004\%$ in container is ............ $kPa$ (Bulk modulus of the liquid $= 2100\,MPa$ )
A force $F$ is applied on a square area of side $L$. If the percentage error in the measurement of $L$ is $2 \%$ and that in $F$ is $4 \%$, what is the maximum percentage error in pressure?