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Modulus of rigidity of an incompressible liquid is

Options

  1. ANon zero constant
  2. BZero
  3. CCannot predict
  4. DInfinite

Correct answer

B. Zero

Step-by-step solution

The modulus of rigidity, also known as the shear modulus ( G ), is defined as the ratio of shear stress to shear strain. For a fluid, shear stress is proportional to the rate of shear strain, not the shear strain itself. When a static shear force is applied to a liquid, it continues to deform indefinitely as long as the force is applied, meaning the shear strain is not defined for a static state. Consequently, the resistance to shear deformation in a liquid is zero. Therefore, the modulus of rigidity for any liquid

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