Two bodies $A$ and $B$ of equal masses, area and emissivity cooling under Newton's law of cooling from same temperature are represented by the graph. If $\theta$ is the instantaneous temperature of the body and $\theta_0$ is the temperature of surroundings, then relationship between their specific heats is ..........
A$S_A=S_b$
B$S_A > S_b$
C$S_A < S_b$
D
None of these
Medium
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B$S_A > S_b$
b (b)
Body loosing its temperature soon means low specific heat
$\Rightarrow S_A > S_B$
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It takes $10$ minutes to cool a liquid from $61^oC$ to $59^oC$. If room temperature is $30^oC$ then time taken in cooling from $51^oC$ to $49^oC$ is ....... $\min$
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