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प्रश्न
What is meant by the term buoyancy?
एका वाक्यात उत्तर
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उत्तर
The property of a liquid to exert an upward force on a body immersed in it is called buoyancy.
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संबंधित प्रश्न
When a boat is partially immersed in water, it displaces 600 kg of water. How much is the buoyant force acting on the boat in newtons ? (g = 10 m s-2)
Define the term Density of a substance.
For a floating body, how is its weight related to the buoyant force?
Deduce an expression for the pressure at depth inside a liquid.
The S.I. unit of pressure is :
- Calculate the height of a water column which will exert on its base the same pressure as the 70 cm column of mercury. Density of mercury is 13.6 g cm-3.
- Will the height of the water column in part (a) change if the cross-section of the water column is made wider?
Why is a force needed to keep a block of wood inside water?
Select the correct option:
The phenomenon due to which a solid experiences upward force when immersed in water is called:
The base of a cylindrical vessel measures 300 cm2. Water (density = 1000 kg m-3) is poured into it up to a depth of 6 cm. Calculate the pressure and thrust of water on the base. (g = 10 m s-2)
A body will sink if the weight of the body is greater than the buoyant force.
