Question

Assertion (A) : If a raw egg and a boiled egg are spinned on the table with same initial angular velocity, then raw egg comes to rest quickly.
Reason (R) : While spinning, the moment of inertia of raw egg is less than that of boiled egg.

• A. Both A and R are true and R is correct explanation of A
• B. Both A and R are true and R is not correct explanation of A
• C. A is true and R is false
• D. A is false and R is true

Answer 1

Answer: (C)

A is true and R is false

Moment of inertia of a raw egg is greater than the moment of inertia of of boiled egg. because mass of the raw egg is concentrated of the surface away from the axis of rotation whereas in boiled egg the mass is distributed through out the volume.