Question

Statement-1: The moment of inertia of any rigid body is minimum about axis which passes through its centre of mass as compared to any other parallel axis.
Statement-2: The entire mass of a body can be assumed to be concentrated at its centre of mass for applying Newtons force Law.

• A. Statement- 1 is true, statement- 2 is true and statement- 2 is correct explanation for statement- 1 .
• B. Statement- 1 is true, statement- 2 is true and statement- 2 is NOT the correct explanation for statement- 1 .
• C. Statement- 1 is true, statement- 2 is false.
• D. Statement- 1 is false, statement- 2 is true.

Answer 1

Answer: (B)

Moment of Inertia of a body is minimum about an axis passing through CM for given parallel axis. If may not for the axis making some angle.