Question

two waves combine with destructive interference. what must be true of the combined wave that forms? a. it has a higher amplitude than that of the original waves. b. it has a lower frequency than that of the original waves. c. it has a lower amplitude than that of the original waves. d. it has a higher frequency than that of the original waves.

Explanation:

Destructive interference occurs when two waves are out - of - phase. In this case, the amplitudes of the waves subtract from each other. So the combined wave has a lower amplitude than the original waves. Frequency is not affected by interference.

Answer:

C. It has a lower amplitude than that of the original waves.