Physics
Mica is used in electrical appliances such as electric iron because mica is

a good conductor of heat as well as electricity
a bad conductor of heat but a good conductor of electricity
a bad conductor of heat as well as electricity
a good conductor of heat but a bad conductor of electricity

ANSWER DOWNLOAD EXAMIANS APP

Physics
Why two thin shirts can keep us warmer than a single thick shirt in winter ?

Air layer between two shirts behaves like insulating media
Air layer between two shirts works as good conductor
Two thin shirts become thicker so prevent transmission of heat
No radiation of heat takes place

ANSWER DOWNLOAD EXAMIANS APP