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3 votes
Refraction occurs when a wave

a.
enters a new medium at an angle.
b.
hits a surface through which it cannot pass.
c.
moves around a barrier.
d.
interferes with another wave.

2 Answers

3 votes

the answer is a.................

User Valerian Pereira
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7.3k points
7 votes
i beleieve that the answer is a
User MANOJ GOPI
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6.9k points