Question

Which of the following is different from others, as regards the centre of gravity?

Options

• Solid cone

• Solid sphere

• Rod

• Hollow sphere

• Cylinder

• Ring

• Rectangular lamina

Answer 1

Solid cone

Explanation: 

In a uniform rod, solid sphere, and hollow sphere, the centre of gravity lies at the geometrical centre.

For a solid cone, the centre of gravity does not lie at its geometrical centre; it lies on the axis at a distance of `h/4` from the base.