Question

inside and outside temperatures of a room are 30°Cand40℃ respectively. By using the air conditioner the inside
temperature of the room is decreased from 30°C to
20℃ i.e. the temperature difference is doubled. Then the
thermal conductivity of the walls of the room, will
(a) be doubled
(b) be halved
(c) remain the same (d) be four times​

Answer 1

Answer:

b is the correct anwser