Spheres P and Q are uniformly constructed from the same material which – InterviewSolution

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1.	Spheres P and Q are uniformly constructed from the same material which is a good conductor of heat and the radius of Q is thrice of radius of P. The rate of fall of temperature of P is x times that of Q when both are at the same surface temperature. The value of x is ;
Answer» Spheres $P$ and $Q$ are uniformly constructed from the same material which is a good conductor of heat and the radius of $Q$ is thrice of radius of $P$ . The rate of fall of temperature of $P$ is $x$ times that of $Q$ when both are at the same surface temperature. The value of $x$ is ;

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