Physics
Sun appears red in colour at sunrise and sunset due to

Red light having longer wave length scatters away
The fact that sun emits only red colour at that time
That sun comes out of the mountains
That all other colours scatter away except red

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP