Two spheres made of same material have radii in the ratio 1: 2 Both are at same temperature. Ratio of heat radiation energy emitted per second by them is

Two spheres made of same meterial have radii in the ratio 1:2 both are the same temperature Ratio of heat radiation energy emitted per sec by them is

Two sphere made of the same material have their radii in the ratio of 2 : 1 . What is the ratio of the radiant energy emitted per second by them if both of them are at the same temperature ?

Two spheres made of same material have their radii in the ratio 1 : 3. They are heated lo the same temperature and kept in the same cool surroundings at a moderate temperature. Show that the ratio of their initial rates off all of temperature is 3 : 1 if the bodies are cooled by natural convection and radiation

Two spheres of the same metal have radii in the_ratio 1 : 2 Their heat capacities are in what ratio

Two sheres made of same material have their radii in the ratio 1:3 They are heated to the same temperature and kept in the same surroudings at a moderate temperature Show that the ratio of their initial rates of fall of temperature is 3:1 if the bodies are cooled by natural convection and radiation .

Two lead spheres at the same temperature have radii in the ratio 1 :2. What is the ratio of their heat capacities?

2 rods made of same material have their radii in the ratio 2:1. Same force was applied on them. Ratio of stress in them is

Two spheres of the same material have radii 1 m and 4 m and temperature 4000 K and 2000 K respectively. Ratio of the energy radiated per second by the first sphere to that by the second is . . . . . .