Verified Answer :

Answer : The resultant amplitude is zero.

Explanation :

It is given that, Wave A has an amplitude of 2, and wave B has an amplitude of 2.

There can be two condition after interaction of the waves :

  • Constructive
  • Destructive

The resultant of two waves can be given by :

\(R=\sqrt{A^2+B^2+2AB cos\theta}\)

Here \(\theta\) is 180

\(R=A-B\)

or

\(R=0\)

So, when the crest of wave A meets the trough of wave B the resultant amplitude becomes zero i.e. the amplitudes of two waves are cancelling each other.

Hence, this is the required solution.

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