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NEET 2006 Physics question

PhysicsOscillationsNEET 2006

A rectangular block of mass m and area of cross-section A floats in a liquid of density . If it is given a small vertical displacement from equilibrium it undergoes oscillation with a time period T. Then:-

Answer: (2)

Solution

If the block is pushed down by a small distance , an extra volume is immersed, so the extra buoyant force (restoring force) is . This is SHM with force constant . Time

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Question ID VK-089537