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(a) Liquid drops are spherical in shape. Why?
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2
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3420
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February 16, 2021
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By using Stokes law, derive an expression for terminal velocity. On what factors does it depend?
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1
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39791
|
September 2, 2019
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Which of the following properties could be used to solve the following equation? x - 4 = 12
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0
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541
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March 19, 2018
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Explain why :(a) To keep a piece of paper horizontal, you should blow over, not under it
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1
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4390
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August 20, 2016
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(a) Explain Magnus effect, in case of spinning ball
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1
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3087
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August 20, 2016
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In deriving Bernoulli's equation, we equated the work done on the fluid in the tube to its change in the potential and kinetic energy
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1
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3186
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August 20, 2016
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What is the pressure difference between the two ends of the tube?
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1
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1126
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August 20, 2016
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An air bubble of radius r rises steadily through a liquid of density p at the rate of v. Neglecting density of air, find the coefficient of viscosity of liquid
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0
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4430
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August 20, 2016
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In Millikan's oil drop experiment, what is the terminal speed of an uncharged drop of radius 2.0 x ${{10}^{-5}}$ m and density of 1.2 X ${{10}^{3}}$ kg ${{m}^{-3}}$?
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1
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3572
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August 20, 2016
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Figures (a) and (b) refer to the steady flow of a (non-viscous) liquid. Which of the two figures is incorrect ? Why?
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1
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1254
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August 20, 2016
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In a test experiment on a model aeroplane in a wind tunnel, the flow speeds on the upper and Tower surface of the wing are 70 m${{s}^{-1}}$ and 63 m${{s}^{-1}}$ respectively. What is the lift on the wing if its area is 2.5 ${{m}^{2}}$
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0
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1399
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August 20, 2016
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Why do cloud float in the sky?
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0
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2237
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August 20, 2016
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Why are the cars and aeroplanes given stream line shape?
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0
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529
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August 20, 2016
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Bernoulli's theorem holds for incompressible, non-viscous fluids. How is this relationship changed when the viscosity of the fluid is not negligible?
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0
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1946
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August 20, 2016
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Is Bernoulli's theorem valid for viscous liquid?
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0
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1257
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August 20, 2016
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What is Torricelle's law?
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0
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486
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August 20, 2016
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Write any two points of steamlines
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0
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543
|
August 20, 2016
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Does it mat ter if one uses gauge instead of absolute pressure in applying Bernoulli's equation?
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0
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737
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August 20, 2016
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Can Bernoulli's equation be used to describe the flow of water through a rapid flow in a river?
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0
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1720
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August 20, 2016
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What is the terminal velocity of a body in a freely falling system?
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0
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1847
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August 20, 2016
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The diameter of ball X is twice of that of Y. What will be the ratio of their terminal velocities in water?
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0
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2224
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August 20, 2016
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Where and why high viscosity liquids are used in trains?
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0
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2329
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August 20, 2016
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If water in a flask and caster oil in other are violently shaken and kept on a table, then whilch one will come to rest earlier?
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0
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540
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August 20, 2016
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Derive an expression for the radius of interference when two soap bubbles of different radii are in contact
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0
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2301
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August 20, 2016
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Derive the formula for rise of liquid in a capillary tube (Ascent formula)
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0
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72597
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August 20, 2016
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Explain surface energy. Establish its relation with surface tension
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0
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12534
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August 20, 2016
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Find the excess pressure:
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1
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10121
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August 20, 2016
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Explain why small drops of mercury are spherical and large drops become flat?
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0
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4284
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August 20, 2016
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Two capillaries of same length and radii in the ratio 1:2 are connected in series
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1
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3754
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August 20, 2016
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A U-shaped wire is dipped in a soap solution and removed
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1
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1749
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August 20, 2016
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