Question

The dimensional formula for the modulus of rigidity is=?

Answer 1

hai


The derived SI unit of shear modulus is the pascal (Pa), although it is usually expressed in gigapascals (GPa) or in thousands of pounds per square inch (ksi). Its dimensional form is M1L−1T−2, replacing force by mass times acceleration.


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Answer 2

Hey mate,

◆ Modulus of rigidity -

Modulus of rigidity is the ratio of shear stress to shear strain.

G = Shear tess / Shear strain

◆ Unit of G -

As strain is a unitless quantity, G has same units as of stress or pressure. i.e. Newton/Sq.meter (N/m^2).

This is also called as Pascal (Pa).

◆ Dimensions of G -

As strain is a dimensionless quantity, G has same dimensions as of stress or pressure. i.e. [ML^-1T^-2]

Hope that is useful...