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| a complete range or electromagnetic waves placed in order of increasing frequency, this spectrum is made up of radio waves, infarred waves, visible light, ultraviolet rays, X- rays and gamma rays |
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| this type of wave transfers electrical and magnetic energy. this wave is consisted of vibrating electric and magnetic field that move through space at the speed of light |
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| this type of material transmits most of the light that strikes through it, when light hits the particles of a transparent material, the particles absorb it but then reemit it or send it back out, until the light finally passes through to the other side |
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| material that scatters light that passes through, just as smoke, fog and clouds scatter light as it passes through the air |
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| material that reflects or absorbs all of the light that strikes it. |
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| when an object or wave bounces back off a surface through which it cannot pass |
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| when light enters a new medium prependicular to the boundary, it will keep moving in the same direction. But if it hits the boundary at an angle it will also bend and change speed |
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| light enters the eye through the transparent front surface |
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| an opening through which light enters the inside of the eye |
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| a layer of cells that lines the inside of the eyeball |
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