If the height and radius of a cone of volume `V` are doubled, then the volume of the cone, is (a) 3 V (b) 4 V (c) 6 V (d) 8 V

If each edge of a cube, of volume V , is doubled, then the volume of the new cube is (a) 2 V (b) 4 V (c) 6 V (d) 8 V

A right circular cylinder and a right circular cone have the same radius and the same volume. The ratio of the height of the cylinder to that of the cone is (a) 3:5 (b) 2:5 (c) 3:1 (d) 1:3

A cylinder with base radius of 8 cm and height of 2 cm is melted to form a cone of height 6 cm. The radius of the cone is (a) 4 cm (b) 5 cm (c) 6 cm (d) 8 cm

A solid consists of a circular cylinder with an exact fitting right circular cone placed at the top. The height of the cone is h . If the total volume of the solid is 3 times the volume of the cone, then the height of the circular cylinder is (a) 2h (b) (2h)/3 (c) (3h)/2 (d) 4h

If the radius of a right circular cone is halved and height is doubled then what will be new volume?

If l is the length of a diagonal of a cube of volume V, then (a) 3V=l^3 (b) sqrt(3)\ V=l^3 (c) 3sqrt(3)\ V=2l^3 (d) 3sqrt(3)\ V=l^3

A solid wooden cone has been supported by a string inside water as shown in the figure. The radius of the circular base of the cone is R and the volume of the cone is V . In equilibrium the base of the cone is at a depth H below the water surface. Density of wood is d (lt rho , density of water) Then tension in the string is

The ratio of the heights of two cones of same base is 4 : 3. If the volume of small cone is 462 pi cm^(3) , then find the volume of new cone.

A solid consists of a circular cylinder with an exact fitting right circular cone placed at the top. The height of the cone is h . If the total volume of the solid is 3 times the volume of the cone, then the height of the circular cylinder is 2h (b) (2h)/3 (c) (3h)/2 (d) 4h

The base radius and slant height of a cone are 8 cm and 2 sqrt(13)cm respectively. Find the volume of the cone.