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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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This question has statement -I and statement-II of the four choices given after the statements. Choose the one that best describes the two statements.
Statement-I: A capillary tube is dipped in a liquid rises to a height in it. As the temperature of the liquid is raised, the height decreases (if the density of the liquid and the angle of contact remain the same)
Statement-II: Surface tension of a liquid decreases with the rise in its temperature.
Statement-I: A capillary tube is dipped in a liquid rises to a height in it. As the temperature of the liquid is raised, the height decreases (if the density of the liquid and the angle of contact remain the same)
Statement-II: Surface tension of a liquid decreases with the rise in its temperature.
View answer and explanation
Correct option: A
Statement I and statement II are true and statement II is correct explanation of statement I
Option A is correct. As temperature increases, surface tension decreases, leading to a decrease in the capillary rise height.
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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
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