Which kinds of objects emit light? a)objects that shine b)hot objects c)distant objects d)colored objects e)all objects

A) objects that shine  

B) hot objects  

Actually our eyes see objects when light reflects from those objects and reach our eyes. Emission of light is only possible from source of light. The other one is reflection. So in the given options shiny objects and hot objects can become the source of light that is why we can say that shiny and hot objects emit light.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia