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प्रश्न
What causes buoyant force (or upthrust) on a boat ?
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उत्तर
Water causes buoyant force or upthrust on a boat.
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संबंधित प्रश्न
What physical quantity is measured in bar?
Why do sea divers need special protective suit?
A vessel contains water up to a height of 1.5 m. Taking the density of water 103 kg m-3, acceleration due to gravity 9.8 m s-2 and area of base of vessel 100 cm2, calculate: (a) the pressure and (b) the thrust at the base of vessel.
What do you understand by the term upthrust of a fluid? Describe an experiment to show its existence.
Define upthrust and state its S.I. unit.
Describe an experiment to show that a body immersed in a liquid appears lighter than it really is.
A body experiences an upthrust F1 in river water and F2 in sea water when dipped up to the same level. Which is more, F1 or F2? Give reason.
Consider the statement given below and choose the correct option.
Assertion: Water strider slides easily on the surface of the water.
Reason: Water strider experiences less buoyant force.
The magnitude of buoyant force acting on an object immersed in a liquid depends on ______ of the liquid.
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.
