If the radius of a cylinder is doubled keeping its lateral surface area the same, then what is its height ?

The edge of a cube is 6 cm. Find the area of its lateral surfaces.

The radius of a sphere is 7 cm. Find its surface area.

The lateral surface area of a cylinder is equal to the curved surface area of cone . If their bases are the same, find the ratio of the height of the cylinder to the slant height of the cone.

The diameter of a cylinder is 7 cm and its curved surface area is 220 cm^(2) . Then, its height is ……….. cm.

If the radius of the earth is doubled without changing its mass, what will be the change in weight of body of m on the surface of earth ?

The radius of sphere is 3.5 cm Find its surface area and volume .

A friction elutch is in the form of a frustum of a coce with radii 16 cm and 10 cm and height 8 cm. find its lateral surface area and its volume in multiples of pi .

Imagine Earth to be a solid sphere. If the value of acceleration due to gravity at a depth 'd' below Earth's surface is the same as its value at a height 'h' above its surface and is equal to g/4 then the ratio of h/d will be ......

A fixed thermally conducting cylinder has a radius R and height L_0 . The cylinder is open at its bottom and has a small hole at its top. A piston of mass M is held at a distance L from the top surface, as shown in the figure. The atmospheric pressure is P_0 . The piston is taken completely out of the cylinder. The hole at the top is sealed. A water tank is brought below the cylinder and put in a position so that the water surface in the tank is at the same level as the top of the cylinder as shown in the figure. The density of the water is rho . In equilibrium, the height H of the water coulmn in the cylinder satisfies