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प्रश्न
What do you mean by buoyancy?
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उत्तर
All liquid exerts a upward force on the body placed in it. This Phenomenon is called buoyancy.
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संबंधित प्रश्न
An object of weight 200 N is floating in a liquid. What is the magnitude of buoyant force acting on it ?
A body experiences the same buoyant force while floating in water or alcohol.
The weight of a body floating in a liquid is ........
State whether pressure is a scalar or vector?
Complete the following sentence :
Pressure is .................... in all directions about a point in a liquid.
You are provided with a hollow iron ball A of volume 15 cm3 and mass 12 g and a solid iron ball B of mass 12 g. Both are placed on the surface of water contained in a large tub.
- Find upthrust on each ball.
- Which ball will sink? Give a reason for your answer (Density of iron = 8.0 g cm-3)
Select the correct option.
Thrust acting perpendicularly on the unit surface area is called
The base of the cylindrical vessel measures 300 cm2. Water is poured into it up to a depth of 6 cm. Calculate the pressure of water on the base in the vessel.
Define atmospheric pressure diving suits. Does a diving suit create buoyancy?
Assertion (A): The buoyant force on a submerged rigid object can be considered to be acting at the center of mass of the object.
Reason (R): In rigid body, force distributed uniformly through its volume can be considered to be acting at the centre of mass of the body.
