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When light enters water it slows down when it exits it speed up again How is this possible and where does it get the energy to do so?
Updated: 8/19/2019
Wiki User
∙ 12y agoBest Answer
The hydrogen in water causes the speed of light to slow down. When it exits, the air and gravity cause it to speed up again. It gets the energy from gravity.
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∙ 12y agoThis answer is:
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