HELP!! Which type of
electromagnetic radiation is used in security baggage
scanners, and why?
A. Radio, because its low energy makes it safe for the machine
operators
B. Gamma rays, because they are high-frequency waves, which
causes them to easily bend around the objects in the baggage
C. X-rays, because they either pass through or are absorbed by the
objects in the baggage, creating an image of the objects
D. Infrared, because the waves are reflected by the objects in the
baggage, creating an image of the objects

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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