$A$ thermocouple is an arrangement of two different metals to :-

Two thin blankets keep more warmth than one blanket of thickness equal to these two. The reason is

In a steady state,the temperature at the end $A$ and end $B$ of a $20 \ cm$ long rod $AB$ are $100^{\circ} C$ and $0^{\circ} C$. The temperature of a point,$9 \ cm$ from $A$ is (in $^{\circ} C$)

$A$ thin paper cup filled with water does not catch fire when placed over a flame. This is because

Under steady state,the temperature of a body

Assertion: $A$ thermos bottle consists of a double-walled glass vessel with the space between the two walls evacuated,so that the heat transfer between the contents of the bottle and the outside is minimized.
Reason: The vacuum between the two walls inhibits the heat transfer by the radiation mechanism.
Which of the following is correct?