Physics
Convex mirrors are used as a rear view mirror in motor cycles because

It forms smaller image as compared with object
It forms erect (upright) image
It forms real image
All of these

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP