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secondary 4 | Biology
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can someone explain how to get A as the answer, i got C for my answer instead
Date Posted: 6 years ago
Views: 470
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done
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clear
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Hi there! The path of the echo should be amended to be diagonally instead of straight to the wall and bounce back to Y diagonally because angle of incidence will equal angle of reflection for waves :)
Date Posted:
6 years ago
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