The first light source was probably fire. Building a fire with stones occurred in the Middle Paleolithic, between 200,000 and 40,000 years ago according to the link.
No, moon is not a light source, if we consider the moon as a light source, the mirror will also be called a source of light!!!! Every object seen by reflecting light from another object is called a non luminous body. As mirror, book, cup are not light sources, moon is not also a light source because it just reflect the light from the sun.
Candlelight is man-made, so is artificial. Sunlight is natural light from the Sun.
TV is considered an artificial source of light because it generates illumination through electronic means rather than natural processes. It uses backlighting or pixels that emit light to display images, relying on electricity and technology rather than sunlight or fire. As a result, the light produced by a TV is man-made and does not occur naturally in the environment.
no,it is made by artificial
Man-made light sources... lamp, torch, LCD etc.
That is any source of artificial light (not a naturally occurring light)oil lampsgas lampscampfireselectric lampscandlesetc.
No. A light bulb is.
You do not found C.F.L. bulb in nature as such. So it is an artificial or man made source of light. It consumes very less energy. As it does not gives out heat.
Natural light is light made by things in the nature (animals, plants etc.), and the sun. Artificial light is human made light.
Yes as it is made in industrys
No, moon is not a light source, if we consider the moon as a light source, the mirror will also be called a source of light!!!! Every object seen by reflecting light from another object is called a non luminous body. As mirror, book, cup are not light sources, moon is not also a light source because it just reflect the light from the sun.
Candlelight is man-made, so is artificial. Sunlight is natural light from the Sun.
it is an artificial light, its man made
TV is considered an artificial source of light because it generates illumination through electronic means rather than natural processes. It uses backlighting or pixels that emit light to display images, relying on electricity and technology rather than sunlight or fire. As a result, the light produced by a TV is man-made and does not occur naturally in the environment.
it is an artificial light, its man made
no,it is made by artificial
Depends on the source. Ordinary(incandescent) light bulbs have a spectra that's very similar to that of the sun, while fluorescents and LEDs in particular tend to be much more narrow and contain fewer colours.