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They must in phase and must have at least approximately the same frequency.

If the two waves are in phase and have the same frequency, then they will have continuous constructive interference.

If the two waves have different, but similar, frequencies then they will alternate between constructive and destructive interference.

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What will you hear if two sound waves interfere constructively?

louder


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The loudness of sound waves that constructively interfere adds up, resulting in a louder sound. On the other hand, sound waves that destructively interfere cancel each other out, leading to a softer or quieter sound.


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When two light waves with the same amplitude interfere constructively, they combine to form a new wave with a larger amplitude. This results in a brighter light.


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When two waves overlap and interfere constructively what does the resulting wave have?

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If two light waves with the same amplitude interfere constructively, they will combine to form a new wave with a larger amplitude. If they interfere destructively, they will cancel each other out and create a wave with no amplitude.


When two waves of the same wavelength interfere?

When two waves of the same wavelength interfere constructively, they combine to form a wave with increased amplitude. When they interfere destructively, they combine to form a wave with decreased or zero amplitude. The outcome of their interference is determined by the phase relationship between the two waves.


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