List of top Physics Questions on Fluid Mechanics asked in KEAM

The power of a motor pump delivering water at a constant speed through a hose of radius \(r\) is \(P\). If the radius of the hose is doubled, then the power of the pump becomes}
A container with a pin hole at the bottom is filled with water and kerosene (specific gravity 0.8). The height of the water layer is 10 cm and the kerosene layer is 20 cm. The velocity of efflux of water is:
Water is flowing through a tube of radius r at constant velocity with power P. What happens to power when radius of the tube doubled?
A liquid of density \( d \) is moving down in a vessel of height \( h \) with an acceleration \( a<g \). Then the pressure at the bottom is?
Bernoulli's principle is applicable to:
If $ P_0 $ is the atmospheric pressure and $ P $ is the pressure at a depth $ h $, find the Guage pressure.
In a ‘tug of war’ game, two persons pull each other through a massless rope. The person who wins is

If the speed of a moving particle is decreased by 1%, the de Broglie wavelength of the wave associated with it

If \( n \) small identical liquid drops, each having terminal velocity \( v \), merge together, then the terminal velocity of the bigger drop is:
The INCORRECT statement is
The working of hydraulic lift is based on the principle of
A liquid is filled upto a height of 20 cm in a cylindrical vessel. The speed of liquid coming out of a small hole at the bottom of the vessel is (g = 10 ms\(^{-2}\))