A hot body, initially at a temperature θ, is present in surroundings that are at a temperature θ0 . The times, taken by the hot body, to cool from
(i) [\(\theta\) to (θ/2)] is (Δt)1
(ii) [(θ/2) to (θ/4)] is (Δt)2
We can then say that
(1) (Δt)1 = (Δt)2
(2) (Δt)1 = 1/2 (Δt)2
(3) (Δt)1 < (Δt)2
(4) (Δt)1 > (Δt)2
