Two different rods $A$ and $B$ are kept as shown in figure. The ratio of thermal conductivities of $A$ and $B$ is
Two different rods $A$ and $B$ are kept as shown in figure. The ratio of thermal conductivities of $A$ and $B$ is
- A
$2$
- B
$0.5$
- C
$1$
- D
$0.67$
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$Assertion :$ Woolen clothes keep the body warm in winter
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- [AIIMS 2002]
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- [KVPY 2011]
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