Question

interference where the resultant wave has a smaller amplitude than the original waves is known as ____.

constructive interference.

destructive interference.

total interference.

resultant interference.

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Explanation:

To solve this, we recall the definitions of wave interference:

• Constructive interference: Resultant amplitude is larger (sum of amplitudes).
• Destructive interference: Resultant amplitude is smaller (difference of amplitudes, can cancel partially or fully).
• "Total interference" and "resultant interference" are not standard terms for this concept.

The question describes interference with a smaller resultant amplitude, so it matches destructive interference.

Answer:

B. destructive interference.