Question

The centre of gravity of a hollow cone of height h is at distance x from its vertex where the value of x is ______.

विकल्प

• `h/3`

• `h/4`

• `(2h)/3`

• `(3h)/4`

Answer 1

The centre of gravity of a hollow cone of height h is at distance x from its vertex where the value of x is `underline bb((2h)/3)`.

Explanation: The centre of gravity of a hollow cone is at a height of h/3 from the base.

Hence, from the vertex, the height is `"h" - "h"/3` 

= `(3"h" - "h")/3`

= `(2"h")/3`