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The constant of proportionality in the conduction equation is called the:
AThermal connectivity
BThermal conductance
CThermal consistency
DThermal conductivity
Answer & Solution
Correct answer: D. Thermal conductivity
1. Conduction rate depends on the material as well as the shape.
2. The material property has its own named constant.
3. The constant of proportionality K is called the thermal conductivity of the material.
4. So the answer is thermal conductivity.
_Source: NCERT Class XI Physics Part II, Ch 10 'Thermal Properties of Matter'_
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