Mechanical Properties of Fluids questions
539 published questions with worked solutions.
- Two liquids A and B have θA and θB as contact angles in a capillary tube. If K = _A _B , K then identify the correct statement:
- A capillary tube of radius 0.1 mm is partly dipped in water (surface tension 70 dyn/cm and glass water contact angle ≈ 0°) with...
- A small soap bubble of radius 4 cm is trapped inside another bubble of radius 6 cm without any contact. Let P_2 be the pressure...
- Water from a pipe is coming at a rate of 100 liters per minute. If the radius of the pipe is 5 cm, the Reynolds number for the...
- If 'M' is the mass of water that rises in a capillary tube of radius 'r', then mass of water which will rise in a capillary tube...
- Water from a tap emerges vertically downwards with an initial speed of 1.0 ms^ -1 . The cross-sectional area of the tap is 10^ -4...
- A submarine experiences a pressure of 5.05 10^ 6 Pa at a depth of d_1 in a sea. When it goes further to a depth of d_2, it...
- A cubical block of side 0.5 m floats on water with 30% of its volume under water. What is the maximum weight that can be put on...
- When an air bubble of radius r rises from the bottom to the surface of a lake, its radius becomes 5r 4 . Taking the atmospheric...
- A wooden block floating in a bucket of water has 4 5 of its volume submerged. When certain amount of an oil is poured into the...
- The ratio of surface tensions of mercury and water is given to be 7.5 while the ratio of their densities is 13.6. Their contact...
- A solid sphere, of radius R acquires a terminal velocity v_1 when falling (due to gravity) through a viscous fluid having a...
- An ideal fluid flows (laminar flow) through a pipe of non-uniform diameter. The maximum and minimum diameters of the pipes are...
- A small spherical droplet of density d is floating exactly half immersed in a liquid of density and surface tension T. The radius...
- Given below are two statements: Statement I: The contact angle between a solid and a liquid is a property of the material of the...
- Mercury is filled in a tube of radius 2 cm up to a height of 30 cm. The force exerted by mercury on the bottom of the tube is...
- A soap bubble is blown to a diameter of 7 cm. 36960 erg of work is done in blowing it further. If surface tension of soap...
- Given below are two statements: Statement-I: When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in...
- A big drop is formed by coalescing 1000 small droplets of water. The ratio of surface energy of 1000 droplets to that of energy...
- Consider a solid sphere of radius R and mass density (r)= _0 (1- r^2 R^2 ), 0<r R. The minimum density of a liquid in which it...
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