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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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A: An ice block with lead short is floating in water. When ice melt completely water level slightly drops.
R: When ice block with less shot is placed in water, volume of displaced water is more then that of the ice block
R: When ice block with less shot is placed in water, volume of displaced water is more then that of the ice block
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Correct option: B
Both A and R are true and R is not the correct explanation of A
Option B (Both A and R are true and R is not the correct explanation of A) is correct. The water level drops because the volume of water displaced by the melted ice is less than the volume of water displaced by the ice block with the lead shot. The reason is true but doesn't explain the drop in water level.
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With the increase in temperature viscosity of a liquid -
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
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
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