Two spheres of radii `R_(1)` and `R_(2)` are made of the same material and are at the same temperature. The ratio of their thermal capacities is:

Two solid spheres of radii R_(1) and R_(2) are made of the same material and have similar surfaces. These are raised to the same temperature and then allowed to cool under identical conditions. The ratio of their initial rates of loss of heat are

Two solid spheres of radii R_(1) and R_(2) are made of the same material and have similar surfaces. These are raised to the same temperature and then allowed to cool under identical conditions. The ratio of their initial rates of loss of heat are

Two solid spheres of radii R_(1) and R_(2) are made of the same material and have similar surfaces. These are raised to the same temperature and then allowed to cool under identical conditions. The ratio of their initial rates of loss of heat are

The ratio of the radii of two spheres made of the same material 1:4. The ratio of their thermal capacities is

Two solid spheres of radii R_(1) and R_(2) are made of same material and have similar surface. The spheres are raised to the same temperature and then allowed to cool under identical conditions. Assuming spheres to be perfect conductors of heat, their initial ratio of rates of loss of heat is:

two metal spheres of radii R_(1) and R_(2) are charged to the same potential. The ratio of charges on the spheres is

Two isolated, charged coducting spheres of radii R_(1) and R_(2) produce the same electric field near their surfaces. The ratio of electric potentials on their surfaces is

Two satellites of radii r_(1) and r_(2) are made from the same material.The ratio of acceleration due to gravities at the surface of the two satellites is (A) (r_(1))/(r_(2)) (B) (r_(2))/(r_(1)) (C) (r_(1)^(2))/(r_(2)^(2))

A solid sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature.