Home Physics Simple Harmonic Motion (Oscillations) NEET Previous Year Question A rectangular block of mass and area of cro…
Physics Simple Harmonic Motion (Oscillations) NEET Previous Year Question MCQ (Single Correct)

A rectangular block of mass and area of cross‐section floats in a liquid of density If it is given a small vertical displacement from equilibrium it undergoes with a time period then

A
B
C
D

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The correct answer is:
C

Let be the length of block immersed in liquid as shown in the figure. When the block is floating,

If the block is given vertical displacement then the effective restoring force is

Restoring force . As this is directed towards its equilibrium position of block, so if the block is left free, it will execute simple harmonic motion.

Here inertia factor mass of block

Spring factor

Time period

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