When the wave meets the condition of interference occurs. The interference effect is the sum of the individual wave amplitudes at each site where more than one wave is present.
What is the interference of waves?
The result of two or more wave trains flowing in opposite directions on a crossing or coinciding pathways. This phenomenon is known as the interference of waves.
When two wave pulses are traveling along a string toward each other. They meet and the phenomenon is occur known as interference.
Hence the phenomenon of interference occurs when two wave pulses are traveling along a string toward each other.
One wave on a string is moving toward the right and another is moving toward the left. When they meet in the middle, half of the cycle of the wave from the right overlaps with half of the cycle of the wave from the left.
The result is that the string gets flat when the two waves meet the condition of the interference of wave occurs.
Hence when the wave meets the condition of interference occurs.
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