Two solid spheres made of the same metal have weights 5920g and 740 g, respectively. Determine the radius of the larger sphere. If the diameter of the smaller one is 5 cm.

Three solid sphres of radius 1 cm, 6 cm and 8 cm, respectively are melted together and cast into a single sphere. The radius r of this sphere will be

Two solid spheres of same mass are made of metals of different densities. Which one of them has a larger moment of inertia about a diameter?

Metallic spheres of radii 6 cm, 8 cm and 10 cm, respectively, are melted to form a single solid sphere. Find the radius of the resulting sphere.

A hollow and a solid sphere of the same mass have equal moment of inertia about their diameters.The ratio of their radii is :

The adjoining figure shows two circles with the same centre. The radius of the larger circle is 10 cm and the radius of the smaller circle is 4 cm(a) the area of the larger circle (b) the area of the smaller circle (c) the shaded area between the two circles. ( pi = 3.14)

Two metallic sphers of radii 1 cm and 2 cm are given charges 10^-2C and 5xx10^-2 C respectively. If they are connected by a conducting wire, the final charge on the smaller sphere is

Consider two conducting spheres of radii of R_1 and R_2 with R_1 > R_2 . If the two are at the same potential the larger sphere has more charge than the smaller spheres. State whether the charge density of the smaller sphere is more or less than that of the larger one.

Two parallel plate air capacitors have their plate areas 100 and 500 cm^(2) respectively. If they have the same charge and potential and the distance between the plates of the first capacitor of 0.5 mm, what is the distance between the plates of second capacitor ?

Two spheres are made of same metal had and have same mass. One is solid and the other is hollow. When heated to the same temperature, percentage increase in diameter will be