What happens during destructive interference?
the crests and troughs of out-of-phase waves cancel each other out
the crests and troughs of two waves combine into one larger waveform
two waves add their effects to each other
waves move in opposite directions and repel each other

Question

What happens during destructive interference?
       the crests and troughs of out-of-phase waves cancel each other out
       the crests and troughs of two waves combine into one larger waveform
       two waves add their effects to each other
       waves move in opposite directions and repel each other

anonymous · Answer

Destructive. You are destroying the wave form by adding two waves that cancel each other out. So I would think the first option make the most sense.