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NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS
1
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Consider the two statements:
Statement-1: A capillary tube is frst dipped in hot water and then dipped in cold water. The rise is higher in hot water.
Statement-2: Capillary tube is first dipped in cold water and then dipped in hot water. The rise is higher in cold water.
Statement-1: A capillary tube is frst dipped in hot water and then dipped in cold water. The rise is higher in hot water.
Statement-2: Capillary tube is first dipped in cold water and then dipped in hot water. The rise is higher in cold water.
View answer and explanation
Correct option: B
Statement-1 is false and statement-2 is true
Option B is correct. Surface tension decreases with increasing temperature, so the capillary rise is higher in cold water.
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With the increase in temperature viscosity of a liquid -
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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