Sorry I really don’t know I was trying to help and get points it might be D
Answer: If the light ray hits the boundary at an angle which is not perpendicular to or parallel to the surface, then it will change direction and appear to `bend'
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A B C these are the answers hopes this help <3
Answer:
well because with the velocity of the two, using the second law, it can slow the velocity before there is a casualty.
Explanation:
