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A vessel is filled with two different liquids of densities ρ and 2ρ respectively as shown in the figure. The velocity of flow of liquid through a hole at height h2 from bottom is

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Important Questions on Mechanical Properties of Fluids

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Gamma Question Bank for Engineering Physics>Chapter 9 - Mechanical Properties of Fluids>Assignment>Q 25
A liquid of density ρ is filled in a vessel up to height H and a hole of cross section area A is made at a depth h below the free surface of liquid. The speed of liquid coming out of the hole is independent of 
(i) h
(ii) a
(iii) ρ
(iv) g
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Gamma Question Bank for Engineering Physics>Chapter 9 - Mechanical Properties of Fluids>Assignment>Q 26
Water flows through a horizontal pipe of radius 1 cm at a speed of 8 cm s-1. What will be the speed of flow of water under similar conditions, if the radius of the pipe is doubled?
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Gamma Question Bank for Engineering Physics>Chapter 9 - Mechanical Properties of Fluids>Assignment>Q 27
Bernoulli's equation is conservation of
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Gamma Question Bank for Engineering Physics>Chapter 9 - Mechanical Properties of Fluids>Assignment>Q 28
Reynolds number for a liquid of density ρ, viscosity η and flowing through a pipe of diameter D, is given by
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Gamma Question Bank for Engineering Physics>Chapter 9 - Mechanical Properties of Fluids>Assignment>Q 29
The amount of work done in blowing up a soap bubble of radius 2 cm is [Given surface tension of soap solution =4×10-2 N m-1]
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Gamma Question Bank for Engineering Physics>Chapter 9 - Mechanical Properties of Fluids>Assignment>Q 31
Adding detergents to the water increases its
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Gamma Question Bank for Engineering Physics>Chapter 9 - Mechanical Properties of Fluids>Assignment>Q 32
Water rises to a height h when a capillary of radius r is dipped in water. For another capillary of radius 2r dipped in water, it rises to the height
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Gamma Question Bank for Engineering Physics>Chapter 9 - Mechanical Properties of Fluids>Assignment>Q 36
The pressure inside an air bubble of radius 2 cm formed 20 cm below an open water surface is (Given surface tension of water =70×10-3 Nm-1)