Question

Q.5)
Ratio of kinematic viscosity of air to that of water is
(1 marks)
Ans.
5
15
55
10
10 m​

Answer 1

Answer:

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Answer 2

The ratio of the kinematic viscosity of air to that of water is 1: 50.

• There are two kinds of viscosities i.e the dynamic viscosity the absolute viscosity and the kinematic or the relative viscosity.
• The resistance to the flow of an external source in the fluid is called dynamic or absolute velocity.
• whereas kinematic velocity or the relative velocity stands for the absolute viscosity of a fluid divided by its density at the same temperature.
• The ratio of the kinematic or relative viscosity depends on the temperature and the pressure of the fluid.
• Water is 50 times more viscous than air but the air is 15 times more viscous than water.