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A quartz has an index of refraction of 1.46. Diamond has an index of refraction of 2.42. In which material does a light ray entering from air slow down more
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A quartz has an index of refraction of 1.46. Diamond has an index of refraction of 2.42. In which material does a light ray entering from air slow down more

User Zurb
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Light, (electromagnetic wave), travels in a straight line and at constant speed as long as the medium it is travelling in is the same

User Hampton
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