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Experimental Set up to Prove Archimedes' Principle |
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Answer» Note the reading on the spring balance. Let it be W1. Now, slowly dip the stone in the water in a container and note the reading on the spring balance. The reading shown on the spring balance goes on decreasing until it is completely immersed in water. The reading on the spring balance gives us the weight of the stone. Since the reading goes on decreasing, we can infer that the weight of the object is decreasing when it is lowered in water. The apparent loss of weight shows that a type of force is acting on the object in the upward direction thereby decreasing the weight. Thus the upward force acting on an object immersed in a liquid resulting in the apparent loss of weight of the object is called the buoyant force. The tendency of a liquid to exert an upward force on an object placed in it thereby making it float or rise is called buoyancy. |
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