Answer:
To distinguish between a hard boiled egg and a raw egg, we
spin each on a table top. The egg which spins at a slower rate shall be a raw
egg. This is because in a raw egg, liquid matter inside tries to get away from
the axis of rotation. Therefore, its moment of inertia I increases. As \[\tau
=\text{ I}\alpha \]= constant, therefore, \[\alpha \] decreases i.e. raw egg
will spin with smaller angular acceleration. The reverse is true for a hard
boiled egg which will rotate more or less like a rigid body.
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