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Olympiad workbookNSEPThermal Properties of Matter

A steel cooking pan has copper coating at its bottom. The thickness of copper coating is half the thickness of steel bottom. The conductivity of copper is three times that of steel. If the temperature of blue flame is 119^ C and that of the interior of the cooking pan is 91^ C , then the temperature at the interface between the steel bottom and the copper coating in the steady state is

Options

  1. A98^ C
  2. B103^ C
  3. C115^ C
  4. D108^ C

Correct answer

C. 115^ C

Step-by-step solution

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