The coefficient of thermal conductivity of a metal rod depends on its (a) area of cross section (b) mass (c) material of the rod (d) length used

Answer: (c). In Q/t = (KAΔ T)/(L), K is a property of the material only. Area, mass and length change the heat flow, not K. So the answer is (c) material of the rod.

The coefficient of thermal conductivity of a metal rod depends on its | MHT CET 2026 (13 Apr, Shift 2)

Q1MHT CET 2026 · 13 APR · SHIFT 2Easy

Heat Conduction

The coefficient of thermal conductivity of a metal rod depends on its

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Answer: (c)

In $\frac{Q}{t} = \frac{KA\Delta T}{L}$ , $K$ is a property of the material only.
Area, mass and length change the heat flow, not $K$ .
So the answer is (c) material of the rod.

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