Physics Fluid Mechanics Velocity,Terminal Velocity and Coeficient of Viscocity,Viscocity of Fluids MCQ (Single Correct)

The coefficient of viscosity for hot air is

A
Greater than the coefficient of viscosity for cold air
B
Smaller than the coefficient of viscosity for cold air
C
Same as the coefficient of viscosity for cold air
D
Increases or decreases depending on the external pressure

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Text Solution

Verified by Experts
The correct answer is:
A

For gases, viscosity increases with temperature. Hence, coefficient of viscosity for hot air is

greater than coefficient of viscosity for cold air.

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