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

The difference of temperature in a material can convert heat energy into electrical energy. To harvest the heat energy,the material should have

For water at $0^{\circ} C$,it takes one hour for the first $3 \ mm$ of ice layer formation. How many hours will it take for the next $6 \ mm$ of ice formation?

Woollen clothes are used in winter season because woolen clothes

In a steady state of thermal conduction,the temperatures of the ends $A$ and $B$ of a $20 \, cm$ long rod are $100^\circ C$ and $0^\circ C$ respectively. What will be the temperature of the rod at a point at a distance of $6 \, cm$ from the end $A$ of the rod (in $^\circ C$)?

$Assertion :$ Woolen clothes keep the body warm in winter.
$Reason :$ Air is a bad conductor of heat.