Question

Modulus of rigidity of ideal liquids is

• A. infinity
• B. zero
• C. unity
• D. some finite small non-zero constant value.

Answer 1

Answer: (B)

zero

Answer 2

As $\eta$ $=\frac{shearing \,stress }{shearing \,strain }$ and since liquids cannot sustain shearing stress $\therefore$ $\quad$ $\eta=0$ in their case.