[" 53.There are two thin spheres "A" and "B" of the same? "=14],[" material and same thickness.They behave like "],[" black bodies.Radius of "A" is double that of "B" and "],[" both have same temperature "T" .When "A" and "B],[" are kept in a room of temperature "T_(0)(

There are two thin spheres A and B of the same material and same thickness. They behave like black bodies, Radius of A is double that of B and Both have same temperature T. When A and B are kept in a room of temperature T_0 (lt T) , the ratio of their rates of cooling is (assume negligible heat exchange between A and B).

There are two thin spheres A and B of the same material and same thickness. They behave like black bodies, Radius of A is double that of B and Both have same temperature T. When A and B are kept in a room of temperature T_0 (lt T) , the ratio of their rates of cooling is (assume negligible heat exchange between A and B).

There are two thin spheres A and B of the same material and same thickness. They behave like black bodies, Radius of A is double that of B and Both have same temperature T. When A and B are kept in a room of temperature T_0 (lt T) , the ratio of their rates of cooling is (assume negligible heat exchange between A and B).

There are two spherical balls A and B of the same material with same surface, but the diameter of A is half that of B . If A and B are heated to the same temperature and then allowed to cool, then

A and B are two sphere made of same material. Radius of A is double that of B and initially they are at same temperature (T). Both of them are kept far apart in a room at temperature T_(0)(lt T) . Calculate the ratio of initial rate of cooling (i.e. rate of fall of temperature) of sphere A and B if (a) the spheres are solid, (b) the spheres are hollow made of thin sheets of same thickness

Two spheres A and B are made of the same material and have the same radius. Sphere A is hollow alnd sphere B is solid. Both the spheres are heated to the same temperature. Which of the following is correct ?

There are two spheres of same material and same radius at same temperature but one being solid while the other hollow. Which sphere will expand more if they are heated to the same temperature .

Two metallic sphere A and B are made of same material and have got identical surface finish. The mass of sphere A is four times that of B. Both the spheres are heated to the same temperature and placed in a room having lower temperature but thermally insulated from each other.