NEET Physics Heat Transfer MCQ Question
What is the rate of heat transfer by conduction through a 0.02 m thick plate with an area of 0.1 m², if the thermal conductivity of the material is 1.6 W/m·K and the temperature difference across the plate is 100 K?
16 W
32 W
8 W
64 W
Correct Answer
Detailed Explanation
The rate of heat transfer by conduction can be calculated using the formula: Q/t = k(A)(ΔT)/d. Substituting the given values: Q/t = 1.6 W/m·K × 0.1 m² × 100 K / 0.02 m = 16 W.
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