Mechanical Properties of Fluids questions
539 published questions with worked solutions.
- A capillary tube made of glass of radius 0.15 mm is dipped vertically in a beaker filled with methylene iodide (surface tension =...
- Pressure inside a soap bubble is greater than the pressure outside by an amount: (given: R = Radius of bubble, S = Surface...
- When a long glass capillary tube of radius 0.015 cm is dipped in a liquid, the liquid rises to a height of 15 cm within it. If...
- A liquid column of height 0.04 cm balances excess pressure of soap bubble of certain radius. If density of liquid is 8 × 10³ kg...
- Small water droplets of radius 0.01 mm are formed in the upper atmosphere and falling with a terminal velocity of 10 cm/s. Due to...
- A air bubble of radius 1 cm in water has an upward acceleration 9.8 cm s ^ -2 . The density of water is 1 gm cm ^ -3 and water...
- A hollow spherical shell at outer radius R floats just submerged under the water surface. The inner radius of the shell is r. If...
- A fluid is flowing through a horizontal pipe of varying cross-section, with speed v ms ^ -1 at a point where the pressure is P...
- A thin flat circular disc of radius 4.5 cm is placed gently over the surface of water. If surface tension of water is 0.07 Nm^ -1...
- A capillary tube of radius r is immersed in water and water rises in it to a height h. The mass of the water in the capillary is...
- If a soap bubble expands, the pressure inside the bubble :
- The surface tension of a soap bubble is 0.03 N/m. The work done in increasing the diameter of bubble from 2 cm to 6 cm is απ ×...
- If an air bubble of diameter 2 mm rises steadily through a liquid of density 2000 kg/m³ at a rate of 0.5 cm/s, then the...
- A liquid drop of diameter 2 mm breaks into 512 droplets. The change in surface energy is α × 10⁻⁶ J. The value of α is _______....
- A tub is filled with water and a wooden cube 10 cm × 10 cm × 10 cm is placed in the water. The wooden cube is found to float on...
- The surface tension of a soap solution is 3.5 × 10⁻² N/m. The work required to increase the radius of a soap bubble from 1 cm to...
- Eight mercury drops, each of radius r, coalesce to form a bigger drop. The surface energy released in this process is _______. (S...
- A liquid of density 600 kg/m³ flowing steadily in a tube of varying cross-section. The cross-section at a point A is 1.0 cm² and...
- A spherical liquid drop of radius R acquires the terminal velocity v₁ when falls through a gas of viscosity η. Now the drop is...
- The amount of energy required to form a soap bubble of radius 2 cm from a soap solution is nearly : (surface tension of soap...
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