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प्रश्न
Is pressure a vector quantity?
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उत्तर
Pressure is a scalar quantity.
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संबंधित प्रश्न
What is upthrust ?
What is meant by the term ‘buoyancy’ ?
An object of weight 200 N is floating in a liquid. What is the magnitude of buoyant force acting on it ?
Define buoyant force. Name two factors on which buoyant force depends.
What is the cause of buoyant force ?
The diagram given below show a body floating in three different liquids. A, B and C at different levels.
(a) In which liquid does the body experience the greatest buoyant force?
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The pressure of water on the ground floor is 40,000 Pa and on the first floor is 10,000 Pa. Find the height of the first floor. (Take : density of water = 1000 kg m-3, g = 10 m s-2)
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)
Salt water provides less buoyant force than freshwater.
What do you understand by the term “Buoyancy”.
