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The pressure at a point in a fluid will not be same in all the directions when the fluid is
- a)moving
- b)viscous
- c)viscous and static
- d)inviscous and moving
- e)viscous and moving.
Correct answer is option 'E'. Can you explain this answer?
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Verified Answer
The pressure at a point in a fluid will not be same in all the directi...
The Pascal law states that the liquid at rest applies pressure at a point is same in all directions. This means that the pressure is there in spite of the direction. And it is present in the same direction and is having same magnitude. Explanation: The liquid must be incompressible.
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The pressure at a point in a fluid will not be same in all the directi...
Explanation:
Fluid pressure is defined as the force per unit area acting on a surface perpendicular to the direction of the force.
When a fluid is at rest, its pressure is isotropic, meaning the pressure is the same in all directions. This is because the fluid is not moving, and no shear stress is present.
However, when a fluid is in motion, or when it is viscous and in motion or at rest, the pressure at a point will not be the same in all directions. This is because shear stress is present, which causes the fluid to flow in different directions at different speeds.
In the case of a viscous fluid, the shear stress is caused by the interaction between adjacent layers of fluid, which causes the fluid to flow at different speeds. This results in a pressure gradient in the fluid, with higher pressure at points where the fluid is flowing more slowly, and lower pressure at points where the fluid is flowing more quickly.
In the case of a moving fluid, the pressure gradient is caused by the fluid's momentum, which causes it to flow in different directions at different speeds. This results in a pressure gradient, which is highest in the direction of flow and decreases perpendicular to the direction of flow.
Therefore, the correct answer is option E - viscous and moving.
Fluid pressure is defined as the force per unit area acting on a surface perpendicular to the direction of the force.
When a fluid is at rest, its pressure is isotropic, meaning the pressure is the same in all directions. This is because the fluid is not moving, and no shear stress is present.
However, when a fluid is in motion, or when it is viscous and in motion or at rest, the pressure at a point will not be the same in all directions. This is because shear stress is present, which causes the fluid to flow in different directions at different speeds.
In the case of a viscous fluid, the shear stress is caused by the interaction between adjacent layers of fluid, which causes the fluid to flow at different speeds. This results in a pressure gradient in the fluid, with higher pressure at points where the fluid is flowing more slowly, and lower pressure at points where the fluid is flowing more quickly.
In the case of a moving fluid, the pressure gradient is caused by the fluid's momentum, which causes it to flow in different directions at different speeds. This results in a pressure gradient, which is highest in the direction of flow and decreases perpendicular to the direction of flow.
Therefore, the correct answer is option E - viscous and moving.
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Community Answer
The pressure at a point in a fluid will not be same in all the directi...
It's condition in Pascal law, that fluid should be non-viscous and static for same pressure in all directions ..but E is not satisfying with this condition..that's why E is correct answer
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The pressure at a point in a fluid will not be same in all the directions when the fluid isa)movingb)viscousc)viscous and staticd)inviscous and movinge)viscous and moving.Correct answer is option 'E'. Can you explain this answer?
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