- Buoyancy force is the upward force exerted by a fluid that opposes the weight of an immersed object. - An object floats if the buoyant force is equal to or greater than its weight. - The buoyant force is equal to the weight of the fluid displaced by the object. - Floating/sinking is determined by comparing the density of the object (or its average density for irregularly shaped objects) to the density of the liquid.
Whether an object will float or sink in a liquid, depends on
Asked in UPSC NDA 1 2018 · Topic: Mechanics (Fluid Statics and Dynamics (Continuity Equation, Bernoulli's Theorem))
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Answer: C. difference in the densities of the object and li‐ quid
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