Physics · 2014
JEE Main · 12 April 2014, Shift 1 · Q11
Hot water cools from 60^° C to 50^° C in the first 10 minutes and to 42°C in the next 10 minutes. The temperature of the surroundings is:
Hot water cools from $\displaystyle 60^{\circ} \mathrm{C}$ to $\displaystyle 50^{\circ} \mathrm{C}$ in the first $\displaystyle 10$ minutes and to $\displaystyle 42$°C in the next $\displaystyle 10$ minutes. The temperature of the surroundings is :
Official answer
(2)
$\displaystyle 10$°C
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JEE Main 2014 Physics question, with the answer from NTA’s final answer key. Where our answers come from.