Question

question 8 of 25
two waves combine with destructive interference. what must be true of the combined wave that forms?
a. it has a lower amplitude than that of the original waves.
b. it has a higher amplitude than that of the original waves.
c. it has a longer wavelength than that of the original waves.
d. it has a shorter wavelength than that of the original waves.

Explanation:

Destructive interference occurs when two waves combine such that their amplitudes subtract. This results in a wave with a lower amplitude than the original waves. Wavelength is related to the frequency and speed of the wave ( \(v = f\lambda\) ), and destructive interference does not affect the wavelength. It only affects the amplitude.

Answer:

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