Consider a thin square plate floating on a viscous liquid in a large tank. The height h…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
Consider a thin square plate floating on a viscous liquid in a large tank. The height h of the liquid in the tank is much less than the width of the tank. The floating plate is pulled horizontally with a constant velocity u0. Which of the following statements is (are) true?
- The resistive force of liquid on the plate is inversely proportional to h
- The resistive force of liquid on the plate is independent of the area of the plate
- The tangential (shear) stress on the floor of the tank increases with u0
- The tangential (shear) stress on the plate varies linearly with the viscosity h of the liquid.
Answer
(D) The tangential (shear) stress on the plate varies linearly with the viscosity h of the liquid.
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