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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

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A ball floats on the surface of water in a container exposed to the atmosphere. Will the ball remain immersed at its former depth or will it sink or will it rise if the container is covered and the air is removed?

View answer and explanation

Correct option: A

The ball sinks

Option A (The ball sinks) is correct because when the air is removed, the buoyant force due to air is also removed, causing the ball to sink slightly to compensate for the lost buoyant force.

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