Study the four transverse waves shown. compare the properties of waves b, c, & d to that of wave a.

compared to wave a, which wave has the same wavelength but a smaller amplitude?

wave b

wave c

wave d

none of the above.

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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