Practice Micro-to-Macroscopic Behavior - CSIR-UGC NET Offered by Unacademy

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Micro-to-Macroscopic Behavior

Quick practice

Question 1 of 5

The rate of heat flow through a rod of thickness 2 cm and radius 10 cm is $56.25 \mathrm{cal} / \mathrm{s}$ . The thermal conductivity of the rod is $0.0025 \mathrm{cal} / \mathrm{s} \cdot \mathrm{cm}^{\circ} \mathrm{C}$ , then the temperature difference across the end of rod is:

A

$143.3^{\circ} \mathrm{C}$

B

$72.3^{\circ} \mathrm{C}$

C

$90.8^{\circ} \mathrm{C}$

D

$154.3^{\circ} \mathrm{C}$