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प्रश्न
Which of the following diagrams (Figure) does not represent a streamline flow?
विकल्प
उत्तर
Explanation:
In a streamlined flow at any given point. the velocity of each passing fluid particle remains constant. If we consider a cross-sectional area. then a point in the area cannot have different velocities at the same time, hence two streamlines of flow cannot cross each other.
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संबंधित प्रश्न
Fill in the blanks using the word(s) from the list appended with each statement:
For a fluid in a steady flow, the increase in flow speed at a constriction follows (conservation of mass / Bernoulli’s principle)
Explain why When we try to close a water tap with our fingers, fast jets of water gush through the openings between our fingers
In a streamline flow,
(a) the speed of a particle always remains same
(b) the velocity of a particle always remains same
(c) the kinetic energies of all the particles arriving at a given point are the same
(d) the momenta of all the particles arriving at a given point are the same
Water flows through two identical tubes A and B. A volume V0 of water passes through the tube A and 2 V0 through B in a given time. Which of the following may be correct?
(a) Flow in both the tubes are steady.
(b) Flow in both the tubes are turbulent.
(c) Flow is steady in A but turbulent in B.
(d) Flow is steady in B but turbulent in A.
Water is flowing in streamline motion through a tube with its axis horizontal. Consider two points A and B in the tube at the same horizontal level.
(a) The pressures at A and B are equal for any shape of the tube.
(b) The pressures are never equal.
(c) The pressures are equal if the tube has a uniform cross section.
(d) The pressures may be equal even if the tube has a nonuniform cross section.
Along a streamline,
Streamline flow is more likely for liquids with ______.
Along a streamline ______.
Streamline flow is more likely for liquids with ______.
- high density.
- high viscosity.
- low density.
- low viscosity.
