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Assessment
What is the wavelength of a wave if its speed is 300 m/s and its frequency is 150 Hz?
2 m
1 m
3 m
4 m
When two waves of the same frequency interfere constructively, what happens to their amplitude?
It decreases
It stays the same
It doubles
It becomes zero
Which type of interference occurs when two waves meet and the crest of one wave coincides with the trough of another?
Constructive interference
Destructive interference
Total interference
Partial interference
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