AIPMT PRELIMS2003Physics-Thermal Properties of Matter
AIPMT PRELIMS 2003 Physics Conduction MCQ Question
Type: MCQ-numerical-Medium-Class 11
Consider a compound slab consisting of two different materials having equal thicknesses and thermal conductivities K and 2K, respectively. The equivalent thermal conductivity of the slab is -
A
2/6 K
B
√2K
C
3K
D
4/3 K
Correct Answer
Option D
Detailed Explanation
The equivalent thermal conductivity for slabs in series is given by the harmonic mean. Calculating gives 4/3 K.
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