GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Archimedes
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Joseph J. Thomson
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Pierre Simon de Laplace
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Edwin Hubble
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Detailed explanation-1: -Archimedes’ principle states that any object, totally or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object.
Detailed explanation-2: -Archimede’s Principle states that a body immersed in a fluid experiences an upthrust equal to the weight of the fluid displaced, and this is fundamental to the equilibrium of a body floating in still water. A body floating freely in still water experiences a downward force acting on it due to gravity.
Detailed explanation-3: -When a body floats in a liquid, the weight of the liquid displaced by its immersed part is equal to the total weight of the body. This is the law of floatation, i.e. while floating the weight of the floating body = Weight of the liquid displaced by its immersed part. Q.