No. Diamonds reflect and refract light. Without a light source, a diamond cannot be seen.No, a diamond is not a source of light. A cut diamond appears to sparkle because it is very good at scattering light that strikes it.
No, the Sun is not the only light source in the univrse. Every star is it's own light source, just as the sun is, but due to there distance they are not very effective. The Moon also creates a light source, because it reflects the light from the Sun back to earth. In the same way, if we where on the Moon, the Earth would be a light source, reflecting the light from the Sun at the moon.
The moon is not a source of light because it simply reflects the suns light, therefore it is not a direct source of light
No, a very dark night is not luminous. Luminosity refers to the amount of light emitted by an object or source, so a dark night would have minimal to no light present.
A shadow formed by a point source of light has distinct, sharp edges due to the single light source, while a shadow formed by an extended source has softer, less defined edges because light is coming from multiple directions. The point source produces a single, intense shadow, while the extended source creates a more diffused shadow.
Without the light source, you wouldn't be able to see your sample very well!
It is a force light that is very bright
An incandescent light bulb is very inefficient light source because of the amount of heat energy wasted when it is energized.
Stand with your back to a very bright light source and close your eyes tightly.
No. Diamonds reflect and refract light. Without a light source, a diamond cannot be seen.No, a diamond is not a source of light. A cut diamond appears to sparkle because it is very good at scattering light that strikes it.
That all depends what color it was when it left the source. Whatever wavelength it had at the source, if it's approaching you, you'll measure a shorter wavelength (higher frequency) as it passes you. But don't forget that regardless of the speed or direction of the source, you'll measure the light passing you at the 'speed of light' ... no more or less.
Lanterns (or lights) are the "light source" that the Source engine uses to generate light for the game. They are very realistic and can generate shadows and can be moved.
because of the nature of source producing it...
on very very clear nights yes starts are almost the same size as the sun.
the black widow spider is unusual
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.
on very very clear nights yes starts are almost the same size as the sun.