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When wave enter a new region of high density the reflected wave ? a- chnage phase by 180 degree b- doesn't change phase bu 180 degree
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When wave enter a new region of high density the reflected wave ?

a- chnage phase by 180 degree
b- doesn't change phase bu 180 degree

User Theintz
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4 votes
It is A i think or is there more answers?
User Yaru
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