A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Correct Answer: D
Solution :
Equivalent thermal conductivity of two equally thick plates in series combination is given by \[\frac{2}{K}=\frac{1}{{{K}_{1}}}+\frac{1}{{{K}_{2}}}\] If \[{{K}_{1}}<{{K}_{2}}\] then \[{{K}_{1}}<K<{{K}_{2}}\] Hence assertion and reason both are false.You need to login to perform this action.
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