Light theory
Light
Mechanics tells us that light can behave simultaneously as a particle or a wave. Light travels very quickly. Its maximum speed is approximately 300,000,000 m/s, when it travels through a vacuum. The very large difference between the speed of light in air (almost 300,000,000 m/s) explains why you see lightning before you hear it ,see a firework explode before you hear it and the speed of sound in air (343 m/s)
Light Refraction
Refraction in a glass block. When light passes from air through a block with parallel sides, it emerges parallel to the path of the light ray that entered it.The diagram shows how this works for light passing into, and then out of, a glass block. The same would happen for a Perspex block.
Light refraction means when you see something refracting for example mirror if u stand front of the mirror that refraction you back .
Light & COLOUR
Light refraction means when you see something refracting for example mirror if u stand front of the mirror that refraction you back
White light is a mixture of many different colors, each with a different produced ,There are three primary colours in light: red, green and blue. Light in these colours can be added together to make the secondary
Spectrum of colour
You should be able to recall the spectral colours in order of wavelength:
red
orange
yellow
green
blue
indigo
violet
red
orange
yellow
green
blue
indigo
violet