Physics
A concave lens always forms

An image type which depends on object characteristics
A virtual image
An image type which depends on lens curvature
A real image

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 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

ANSWER DOWNLOAD EXAMIANS APP