Dimension of absolute viscosity is_________________?
Correct answer: A. ML-1T-1
- A. ML-1T-1
- B. MLT-1
- C. ML-1T
- D. MLT
Explanation
Dynamic viscosity follows τ = μ(du/dy), so its dimensions are stress divided by rate of strain: (ML⁻¹T⁻²)/T⁻¹ = ML⁻¹T⁻¹. This distinguishes it from kinematic viscosity, whose dimensions are L²T⁻¹.
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