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#liquids

2 public questions tagged with this topic.

Which modulus is not applicable for describing the elastic behavior of liquids and gases under shear stress?

The shear modulus is not applicable for liquids and gases because they do not sustain shear stress and instead flow; only solids have a defined shear modulus. As per NCERT, applying relevant law/formula with correct units and sign convention leads to Shear modulus. This satisfies dimensional consistency and physical conditions given, so option D is scientifically correct.

Ref: NCBI Bookshelf, Ideal Gas Law: P1V1/T1 = P2V2/T2.