Ch 4.2 Properties of Visible Light

• light -wave that travels through empty space
• one explanation how the light behave is-wave model of light
• visible light is light that can be seen, have colours of the rainbow
• different colours are caused by light waves of different wavelengths
• bending of a wave at the border between mediums-refraction
• light waves of different wavelengths refract in different angles
• colours of visible light: red (longest wavelength, less frequency),orange,yellow,green,blue,indigo, and violet (shortest wavelength,more frequency)
• seven colour categories of visible light together-visible spectrum
• reflection-when a light wave touches an object and bounces off ex. when we look at a red cloth, we notice that the cloth is absorbing all the colours in the white light except for the red light.
• different meterials absorb and reflect different wavelengths of light
• red, green, and blue- additive primary colours of light
   
                         

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