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Viscosity of liquid depends upon the:

Viscosity of liquid depends upon the: Correct Answer Both 1 and 2 are correct

CONCEPT:

Viscosity:

  • In the case of a steady flow of a fluid when a layer of fluid slips or tends to slip on adjacent layers in contact, the two-layer exert tangential force on each other which tries to destroy the relative motion between them.
  • The property of a fluid due to which it opposes the relative motion between its different layers is called viscosity (or fluid friction or internal friction) and the force between the layers opposing the relative motion is called viscous force.

EXPLANATION:

  • The viscosity of the liquid increases if the density of the liquid increases. Therefore option 1 is correct. 
  • We know that the density of the liquid decreases as the temperature increases and hence viscosity also decreases.
  • So we can say that the viscosity of liquid depends on the density and temperature both. Hence, option 3 is correct.

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Select the correct answer: