search
arrow-left Previous
Next arrow-right
Q: Which of the following are the dimensionless?
  • A. Compressive stress
  • B. Tangential stress
  • C. Shear strain
  • D. None of these
Correct Answer: Option C - A dimensionless quantity is a quantity that has no dimension which means it is a unitless or a scalar number resulting from computations using the same dimensional quantities. Some examples of dimensionless quantities are – • Strain or shear strain • Relative humidity • Mach number • Specific gravity • Plane angle, solid angle
C. A dimensionless quantity is a quantity that has no dimension which means it is a unitless or a scalar number resulting from computations using the same dimensional quantities. Some examples of dimensionless quantities are – • Strain or shear strain • Relative humidity • Mach number • Specific gravity • Plane angle, solid angle

Explanations:

A dimensionless quantity is a quantity that has no dimension which means it is a unitless or a scalar number resulting from computations using the same dimensional quantities. Some examples of dimensionless quantities are – • Strain or shear strain • Relative humidity • Mach number • Specific gravity • Plane angle, solid angle