Which of the following is a Newtonian fluid ?
Correct answer: D. Non-colloidal solution
- A. Rubber latex
- B. Sewage sludge
- C. Quicksand
- D. Non-colloidal solution
Explanation
A non-colloidal solution generally follows Newton's law of viscosity, so its shear stress is proportional to velocity gradient. Rubber latex, sewage sludge and quicksand contain suspended or interacting particles and are typically non-Newtonian.
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