MHT CET · Physics · Mechanical Properties of Fluids
The viscous force between two liquid layers is
- A radial.
- B normal to the liquid surface.
- C tangential to the liquid surface.
- D neither purely tangential nor purely normal.
Answer & Solution
Correct Answer
(C) tangential to the liquid surface.
Step-by-step Solution
Detailed explanation
According to Newton's law of viscosity,
\(\tau=\frac{F}{A}=-\eta \frac{d v}{d z}\)
As we know that viscous force acts like friction between the layer of two fluids due to which shearing action will occur, a shear force will always act tangential to the plane of the fluid/object. So, tangential stress will be generated between the two layers of the two fluids.
\(\tau=\frac{F}{A}=-\eta \frac{d v}{d z}\)
As we know that viscous force acts like friction between the layer of two fluids due to which shearing action will occur, a shear force will always act tangential to the plane of the fluid/object. So, tangential stress will be generated between the two layers of the two fluids.
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