1. Tardigrade
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  4. Assertion :A boiled egg can be easily distinguished from a raw unboiled egg by spinning. Reason: The hard boiled egg has a moment of inertia which is more than that of the raw egg.

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Q. Assertion :A boiled egg can be easily distinguished from a raw unboiled egg by spinning.
Reason : The hard boiled egg has a moment of inertia which is more than that of the raw egg.

System of Particles and Rotational Motion

Solution:

A hard boiled egg behaves as a rigid body whereas the raw egg has liquid in it which also moves. On spinning both the eggs with the same external torque, the hard boiled egg spins faster and the rotation of the raw egg is slower. This is due to the liquid in the raw egg which tends to move away from the axis of rotation thereby decreasing the effectiveness of the external torque.