Final answer:
The amplitude of one wave is not affected by the amplitude of another wave only when they are precisely aligned.
Step-by-step explanation:
The correct answer to this question is b. False.
The statement that the amplitude of one wave is affected by the amplitude of another wave only when they are precisely aligned is false.
When waves superimpose, their amplitudes can add up or cancel each other out, regardless of whether they are aligned or not.
This phenomenon is known as interference.
If two waves have different amplitudes and they superimpose, the resulting wave will have a different amplitude than either of the original waves.