What is the result of destructive interference when two waves of equal amplitude

Practice Questions

Q1
What is the result of destructive interference when two waves of equal amplitude meet?
  1. Amplitude doubles
  2. Amplitude becomes zero
  3. Amplitude remains the same
  4. Phase difference is π

Questions & Step-by-Step Solutions

What is the result of destructive interference when two waves of equal amplitude meet?
  • Step 1: Understand that waves can combine when they meet.
  • Step 2: Know that 'amplitude' refers to the height of the waves.
  • Step 3: Recognize that 'destructive interference' happens when two waves meet in a way that cancels each other out.
  • Step 4: Learn that for destructive interference to occur, the two waves must be 'out of phase', meaning they are aligned opposite to each other.
  • Step 5: Since the waves have equal amplitude, when they meet out of phase, they cancel each other completely.
  • Step 6: The result of this cancellation is that the combined amplitude becomes zero.
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