All visible light (light that our eyes can detect) has wavelength between 400-700 nanometers. wavelengths just smaller than 400 nm are ultraviolet light. wavelengths just larger than 700 nanometers are infrared light. what type of light is the balmer series light that we have consider so far?

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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