A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes.

Question: A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case,
[A].

the cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant.

[B].

both the spheres will emit equal amount of radiation per unit time in the beginning.

[C].

both will absorb equal amount of radiation from the surrounding in the beginning.

[D].

both(b) & (c).

Answer: Option D

Explanation:

No answer description available for this question.