Prepare for NEET Physics Mechanical Properties Of Fluids with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to understand fluid statics and dynamics.
A completely submerged object experiences an upthrust of 5 N. If the acceleration due to gravity is , what is the weight of the fluid displaced?
0.5 N
5 N
50 N
2 N
Two identical containers are filled to the same height, one with water and the other with oil (density of oil < density of water). The pressure at the bottom of which container is greater?
Water
Oil
Both are equal
Cannot be determined
A body experiences an upthrust of 20 N when fully immersed in water. If it is now fully immersed in a liquid with twice the density of water, what will be the new upthrust?
10 N
20 N
40 N
80 N
The pressure at a point inside a fluid at rest depends on:
Depth and density of the fluid
Shape of the container
Surface area of the fluid
Mass of the fluid
A pipe with a cross-sectional area of 0.01 mยฒ carries water at a speed of 5 m/s. The pipe narrows to a cross-sectional area of 0.005 mยฒ. What is the speed of the water in the narrower section?
2.5 m/s
5 m/s
10 m/s
20 m/s
Which of the following statements best describes the equation of continuity?
Fluid pressure increases with increasing velocity.
The sum of fluid pressure and kinetic energy per unit volume remains constant.
The product of cross-sectional area and fluid velocity remains constant along a streamline.
Fluid velocity is independent of cross-sectional area.
According to Bernoulli's principle, as the speed of a fluid increases,
its pressure increases.
its pressure decreases.
its pressure remains constant.
its temperature increases.
In a horizontal pipe of varying cross-section, the pressure will be lowest where the:
area is largest
velocity is lowest
velocity is highest
area is smallest
Which principle explains the lift of an airplane wing?
Archimedes' principle
Pascal's law
Bernoulli's principle
Newton's third law
If a fluid is flowing through a horizontal pipe with a constant cross-sectional area, and its velocity doubles, what happens to its pressure?
It doubles
It halves
It decreases
It remains constant
