HOW LIGHT WORKS ?
Light is a very important factor of photography. But not everyone knows that nothing is the colour you think it is. For example a red tomato is red because the its surface swallows Yellow, Orange, Green, Blue , Indigo and Violet light and bounces back the red wavelength only.
wavelength is the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
NOTHING IS ACTULLY COLOURED!
wavelength is the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
NOTHING IS ACTULLY COLOURED!
Visible Light Waves
Visible light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light.
Light Through Prism
When white light shines through a prism, the white light is broken apart into the colors of the visible light spectrum. Water vapor in the atmosphere can also break apart wavelengths creating a rainbow.
How Do We See Light ?
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Cones in our eyes are receivers for these tiny visible light waves. The Sun is a natural source for visible light waves and our eyes see the reflection of this sunlight off the objects around us. The color of an object that we see is the color of light reflected. All other colors are absorbed. Light bulbs are another source of visible light waves.
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This is a picture of when a prism divides a white light in to all of the colours. This is done when you have a glass prism and a white light. Put the prism in front of the light and keep on turning it until you get to a perfect position and can see all the colours divided.