1. What is not a light source from a burning or hot object emitting light to make out.Light from weldingThe light from the fire.The light from the burning paper. Light from fluorescent tubes.
1. What is the source of light by burning or hot objects emit light so that the light from welding light from the fire by burning paper different light. More light from fluorescent lamps, fluorescent.
1. Which one is not the light source from burning or glowing hot objects until light from the welding metal light from the fire light from burning paper. Light from a fluorescent lamp.