Why it is easier to swim in the sea than in a river?
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Physics GK · all questionsMechanical Physics
Mechanical Physics
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The working of venturimeter is based on
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The pressure in a liquid at a given depth below the surface
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With the rise of temperature, the viscosity of liquid
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If the area is small for a given force, the pressure will be-
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Oil spreads on water surface because
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Cohesive force is experienced between
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As the depth increases from the free surface of a fluid, the pressure exerted by the liquid will be-
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Which of the following elements was first produced artificially?
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What is the thrust per unit area called?
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A boat full of iron nails is floating on water in a lake. When the iron nails are removed, the water level
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Which one of the following substances possesses the highest elasticity?
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What is the force exerted by water in upwards direction?
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Kerosene oil floats on water because
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If the depth of water in a dam is 'h' and 'A' is the transverse area of dam and 't' is the thickness of the dam. How, the pressure of dam wall depend on?
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Assertion (A) The solids are more elastic and gases are least elastic.
Reason (R) It is so because for the given stress applied the gases are more compressible than that of solids.
Reason (R) It is so because for the given stress applied the gases are more compressible than that of solids.
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Which of the following physicists explained the existence of Buoyant force?
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The density of silver is 10.8 × 103 kgm-3 and the density of water is 103 kgm-3. What is the relative density of silver?
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With the rise of temperature, the surface tension of a liquid
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Virtually the force exerted on a vessel wall by a gas molecules.
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