Answer :
The correct answer is amplify each other
If they move at the same speed with the same frequency in the the same direction, then they will amplify each other due to constructive interference.
If they move at the same speed with the same frequency in the the same direction, then they will amplify each other due to constructive interference.
Answer: The correct option is "amplifying each other".
Explanation:
Interference is the phenomenon in which there is superposition of the waves travelling in the same medium.
The interference can be constructive and destructive.
Constructive interference: In this interference, the resulting wave is of maximum amplitude.
Destructive interference: In this interference, the resulting wave is of minimum amplitude.
Therefore, during constructive interference, two waves moving through the same medium will amplify each other.