How many vibrations per second are associated with a 101-mhz radio wave?

vibrations per second

Explanation:

The frequency of a wave corresponds to the number of vibrations per second:

(1)

where N is the number of vibrations per second.

In this problem, the frequency of the radio wave is

And substituting into eq.(1), we find N:

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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