What happens to the speed of light when it undergoes refraction A) from rarer to denser? B)from denser to rarer medium?
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A) when a light ray goes through rarer to denser medium it bends towards normal (perpendicular to the sueface)
B)when a light ray goes through denser to rarer medium it goes away from the normal
B)when a light ray goes through denser to rarer medium it goes away from the normal
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