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NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS
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Medium
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Analyzing
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Assertion: If an object is submerged in fluid at rest, the fluid exerts a force on its surface.
Reason: Force exerted by the fluid at rest has to be parallel to the surface in contact with it.
Reason: Force exerted by the fluid at rest has to be parallel to the surface in contact with it.
View answer and explanation
Correct option: C
If assertion is true but reason is false
Option C is correct. The assertion is true because fluids exert force on submerged surfaces. The reason is false because the force exerted by a fluid at rest is perpendicular (normal) to the surface.
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Assertion A: When you squeeze one end of a tube to get toothpaste out from the other end, Pascal's principle is observed.
Reason R: A change in the pressure applied to an enclosed incompressible fluid is transmitted undiminished to every portion of the fluid and to the walls of its container.
In the light of the above statements, choose the most appropriate answer from the options given below. Hydraulic lifts and hydraulic brakes are based
on As the temperature of a liquid is raised, the coefficient of viscosity A horizontal pipe of cross-sectional diameter 5 cm carries water at velocity of . The pipe is connected to a smaller pipe with a cross-sectional diameter 4 cm. the velocity of water through the smaller pipe is If two soap bubble of different radii are connected by a tube