MCQ
Modulus of rigidity of ideal liquids is
- AInfinity.
- BZero.
- CUnity.
- DSome finite small non - zero constant value.
Explanation:
As the liquid is ideal, hence it does not have frictional force among it's layers, thus the tangential forces are zero as there is no stress developed. This verifies.
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(Velocity of sound in air is $340\,ms ^{-1}$ )