The thin wire that gives off light in a bulb is known as ___ .
The thin wire that gives off light is known as the filament of the bulb and it is made up of tungsten.
The thin wire that gives off the light in a bulb is known as a filament .
The rapid oxidation of a material to give off energy in the form of heat and light is known as -
When we imagine light as a ray, when a bulb is switched on light ray leaves it. However as we switch off it, there is no light ray is in the room. So does it mean that the bulb takes in all the light?