Mechanical Properties of Fluids questions
539 published questions with worked solutions.
- 'n' small water drops of same size (radius r) fall through air with constant velocity V. They coalesce to form a big drop of...
- A small metal sphere of density is dropped from height h into a jar containing liquid of density ( > ). The maximum depth up to...
- A liquid rises to a height of 2.4 cm in a glass capillary P. Another glass capillary Q having diameter 80% of capillary P is...
- One end of a capillary tube is dipped in water, the rise of water column is 'h'. The upward force of 98 dyne due to surface...
- When a big drop of water is formed form 'n' small drops of water, the energy loss is '3E' where 'E' is the energy of the bigger...
- In most liquids, with rise in temperature surface tension of liquid
- The energy needed for breaking a liquid drop of radius 'R' into 'n' droplets each of radius 'r' is [T = surface tension of the...
- A metal wire of length 'L' and density 'd' floats horizontally on the free surface of water. The maximum radius of the wire does...
- An in-compressible fluid flows steadily through a horizontal cylindrical pipe. The pipe has radius '3R' at point A and '1.5R' at...
- Two raindrops reach the earth with different terminal velocities having the ratio 9:4. The ratio of their volumes is
- The temperature of an air bubble while rising from bottom to surface of a lake remains constant but diameter is doubled. If...
- Pure water rises through a height h in a capillary tube of internal radius r. Surface tension of water is T. The pressure...
- The surface energy of a liquid drop is 'V'. It is sprayed into 1000 equal droplets. The surface energy of all the droplets is
- A liquid drop having surface energy E is spread into 729 droplets of same size. The final surface energy of the droplets is
- A water drop of 0.01 cm^3 is squeezed between two glass plates and spreads in to area of 10 cm^2. If surface tension of water is...
- If we dip capillary tubes of different radii 'r_n' in water and the water rises to different heights 'h_n' in them, then (n =...
- In case of liquid, if Reynold's number 'R_n' is 1450, then the flow of liquid will
- The excess pressure inside a soap bubble of radius 2.5 cm is 48 dyne/cm^2. The surface tension of soap solution in dyne /cm is
- If 450 erg of work is done in blowing a soap bubble of radius 'r', the additional work required to be done to blow it to a radius...
- Two capillary tubes of same diameter are kept vertically in two liquids whose densities are in the ratio 4:3. If their surface...
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