Question

When two waves interfere completely destructively, what is true of the resultant wave?A. has a shorter wavelengthB. has a larger amplitude.c. has a smaller amplitude.D. has a longer wavelength.

Answer 1

When two waves interefere destructively, the two waves cancel each other out. This results in a lower amplitude.

Therefore, when two waves interfere destructively, the resultant wave will have smaller amplitude.