Advertisements
Advertisements
Question
With an increase in temperature, the viscosity of liquid and gas, respectively will __________.
Options
increase and increase
increase and decrease
decrease and increase
decrease and decrease
Advertisements
Solution
With an increase in temperature, the viscosity of liquid and gas, respectively will decrease and increase.
APPEARS IN
RELATED QUESTIONS
(a) What is the largest average velocity of blood flow in an artery of radius 2 × 10–3 m if the flow must remain laminar? (b) What is the corresponding flow rate? (Take viscosity of blood to be 2.084 × 10–3 Pa s).
Water flows at a speed of 6 cm s−1 through a tube of radius 1 cm. Coefficient of viscosity of water at room temperature is 0.01 poise. Calculate the Reynolds number. Is it a steady flow?
Define the coefficient of viscosity of a liquid.
Distinguish between streamlined flow and turbulent flow.
What is Reynold’s number? Give its significance.
Define terminal velocity.
Choose the CORRECT statement.
The velocity of a small ball of mass M and density d, when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is `"d"/2`, then the viscous force acting on the ball will be ______
A force of 0.01 N is required to move a flat glass plate of area of 10 cm2 with a uniform velocity of 1 cm/ s over the surface of a liquid 2 mm thick. If the coefficient of viscosity of the liquid is 20 poise, the velocity gradient in the liquid layer is ______.
The dimensions of coefficient of viscosity are ______.
