Which one of the following quantities does no | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The unit of force per unit area is $N/m^2$ or Pascal $(Pa)$.Stress is defined as the restoring force per unit area,so it has the unit $N/m^2$.Pres

Vedclass · Accepted Answer

Strain

Vedclass · Answer

(B) The unit of force per unit area is $N/m^2$ or Pascal $(Pa)$.Stress is defined as the restoring force per unit area,so it has the unit $N/m^2$.Pressure is defined as the thrust force per unit area,so it has the unit $N/m^2$.Young's modulus of elasticity is defined as the ratio of stress to strain. Since strain is dimensionless,the unit of Young's modulus is the same as stress,which is $N/m^2$.Strain is defined as the ratio of change in dimension to the original dimension. Since it is a ratio of two similar quantities,it is a dimensionless and unitless quantity.Therefore,the correct option is $(B)$.

Which one of the following quantities does not have the unit of force per unit area?

Similar Questions

The elastic behaviour of a material for linear stress and linear strain is shown in the figure. The energy density for a linear strain of $5 \times 10^{-4}$ is $\dots \; kJ/m^3$. Assume that the material is elastic up to the linear strain of $5 \times 10^{-4}$.

$A$ force of $10 \,N$ is required to break a wire of radius $1 \,mm$. The force required to break the wire of the same material, but radius $3 \,mm$ will be

Dimensions of strain are

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight $W$ attached at its free end. The longitudinal stress at any point of cross-sectional area $A$ of the wire is:

What is strain? Give its units. Define longitudinal stress.

Vedclass Test Series

Exam Paper Generator

Online Exam Module