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

A solide sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature (i) Both will emit equal amount of radiation per unit time in the beginning (ii) Both will absorb equal amount of radiation from the surrounding in the beginning (iii) The initial rate of cooling dT//dt will be same for the two spheres (iv) The two spheres will have equal temperatures at any instant

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?

A solid sphere and a hollow sphere of the same material and size are heated to the same temperature and allowed to cool in the same surroundings. If the temperature difference between the surroundings and each sphere is T, then :

A solid sphere and a hollow sphere of the same material and size are heated to the same temperature and allowed to cool in the same surroundings. If the temperature difference between each sphere and its surroundings is T then

A solid sphere and a hollow sphere of same material and size are heated to same temperature and allowed to cool in the same surroundings. If the temperature difference between each sphere and its surrounding is T, then

Assertion : A solid sphere and a hollow sphere of same material and same radius are kept at same temperature in atmosphere. Rate of cooling of hollow sphere will be more. Reason : If all other conditions are same, then rate of cooling is inversely proportional to the mass of body.

Assertion : A solid sphere and a hollow sphere of same material and same radius are kept at same temperature in atmosphere. Rate of cooling of hollow sphere will be more. Reason : If all other conditions are same, then rate of cooling is inversely proportional to the mass of body.

A solid cube and a solid sphere of the same material have equal surface area. Both are at the same temperature 120^(@)C , then