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Question
In a laminar flow at a given point the magnitude and direction of the velocity of the fluid:
In a laminar flow at a given point the magnitude and direction of the velocity of the fluid:
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Solution
The correct option is B direction is only constant
In streamline flow, the motion of a particle after it passes a particular point is the same as the motion of the particle that preceded it at that point. The path that a particle takes is called a stream line. Every particle that passes any particular point will follow the stream line that goes through that point. A bundle of stream lines, like the ones here, is known as a stream tube. Fluid never crosses the surface of a stream tube.
In streamline flow, the motion of a particle after it passes a particular point is the same as the motion of the particle that preceded it at that point. The path that a particle takes is called a stream line. Every particle that passes any particular point will follow the stream line that goes through that point. A bundle of stream lines, like the ones here, is known as a stream tube. Fluid never crosses the surface of a stream tube.
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