Question

define natural and artifical source of light

Answer 1

artificial light- ------ -Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings.
natural light- --- -the light from the sun : sunlight. indoor photographs made in natural light.

Answer 2

This light is good for our health and is necessary for plants to carry out photosynthesis. Fire is another sourceof natural light. Artificial light is generated by artificial sources, such as incandescent lamps, compact fluorescent lamps (CFLs), LEDs, etc.