Two copper spheres of same radii, one hollow and the other solid, are charged to the same potential. Which, if any, of the two would hold more charge ?

Two spheres of same size are made of same metal but one is hollow and the other is solid.They are heated to same temperature,then

Three bodies - a ring, a solid cylinder and a solid sphere of same mass and radii roll down an inclined plane from the same height. Which of the three will reach the ground first?

A metallic solid sphere and a hollow sphere of same material and external radius are heated to the same temperature and allowed to cool in the same environment .Which of the two has aa greater cooling rate?

Two solid sphere of the same mass and same radius, one solid and other hollow. Which one have greater moment of inertia about a diameter?

A hollow insulated brass sphere is positively charged. The electric potential inside the sphere is

Twenty seven identical drops of mercury are charged to the same potential 10 volts. What will be the potential, if all the drops are combined to form one large drop ?

. Two physical quantities of which one is vector and the other is a scalar having the* same dimensional formula are:

Two wires of same radius and legth are subjected to the same load . One wire is of steel an the other is of copper . If the young modulus of steel is twice that of copper find the ratio of elastic energy stored per unit volume in steel to that of copper .

Torques of equal magnitude are applied to a hollow cylinder and a solid sphere, both having the same mass and radius. The cylinder is free to rotate about its standard axis of symmetry, and the sphere is free to rotate about an axis passing through its centre. Which of the two will acquire a greater angular speed after a given time?