JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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K

and

\sigma

respectively are the thermal and electrical conductivities of a metal at absolute temperature

T

, then

View answer and explanation

Correct option: A

\frac{K}{\sigma T}=

constant

Option A (

\frac{K}{\sigma T}=

constant) is correct because the Wiedemann-Franz law states that the ratio of thermal conductivity to the product of electrical conductivity and temperature is constant.

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