Pick the incorrect statement regarding a thermal insulator.
Since thermal insulator cannot transfer heat, hence whatever is kept inside the thermal insulator its temperature does not change as there is no heat transfer.
True or false?
(a) Glass is a bad conductor of heat.
(b) In a thermos flask, hot things remain hot and cold things become warm.
(c) Radiation of heat depends upon the colour of the outer surface of the body.
(d) During radiation the particles of the medium vibrate.
Which one of these things can a thermal insulator NOT do?
Who am I?
(a) I’m found in a thermometer, I measure your temperature.
(b) I make things hot or cold.
(c) I have no shape whatsoever
(d) I dissolve in water, but not in kerosene.