10.20 A body cools from to in 5 minutes

PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

10.20 A body cools from

80^{\circ} \mathrm{C}

50^{\circ} \mathrm{C}

in 5 minutes. Calculate the time it takes to cool from

60^{\circ} \mathrm{C}

30^{\circ} \mathrm{C}

. The temperature of the surroundings is

20^{\circ} \mathrm{C}