Final answer:
The statement is false; waves can affect each other's amplitudes through interference even when not perfectly aligned, such as in destructive interference.
Step-by-step explanation:
The statement is false. The amplitude of one wave is not affected by the amplitude of another wave solely based on their alignment. The phenomenon where two or more waves meet and affect each other's amplitudes is known as interference, and it can happen even when waves are not perfectly aligned.
For constructive interference (where the waves reinforce each other), it is true that the maximum amplitude occurs when waves are in phase or aligned, but waves can still affect each other's amplitudes even when not precisely aligned, such as in destructive interference (where waves partially or completely cancel each other out).