Back to MECHANICAL PROPERTIES OF FLUIDS
NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS
1
Medium
1 of 1
Analyzing
+4 | -1
Assertion: The size of a hydrogen balloon increases as it rises in air.
Reason: The material of the balloon can be easily stretched.
Reason: The material of the balloon can be easily stretched.
View answer and explanation
Correct option: B
If both assertion and reason are true but reason is not correct explanation of the assertion
Option B (If both assertion and reason are true but reason is not correct explanation of the assertion) is correct because while both statements are true, the reason (material stretchability) doesn't fully explain why the balloon expands at higher altitudes. The primary reason is the decrease in external air pressure.
More Questions from MECHANICAL PROPERTIES OF FLUIDS
Practice All Chapter MCQs →
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