Modulus of rigidity of ideal liquids is(a) infinity(b) zero(c) unity(d) some finite small non-zero constant value
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zero because if you apply a force the liquid simply flows and the strain becomes arbitrarily large.
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Answer:
Modulus of rigidity of ideal liquids is (b)zero
Explanation:
The ratio of tangential stress to the shearing strain within limits of proportionality is termed as modulus of rigidity of the material of a given body.
Only solid materials can exhibit shearing as they have a specific shape. Liquids cannot sustain shearing stress and the tangential forces are also zero so they do not develop any stress. Hence, modulus of rigidity is zero.
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