Final answer:
The statement is false because waves can interfere constructively or destructively through superposition, which does not require them to be perfectly aligned, just overlapping.
Step-by-step explanation:
The statement given is false. The amplitude of one wave is not solely affected by the amplitude of another wave when they are precisely aligned. Instead, waves interact through a process called interference, which can occur when two waves meet while traveling along the same medium. The principle behind this is known as superposition, which states that when two or more waves overlap, the resulting wave is the sum of the individual waves. This means that waves can interfere constructively or destructively regardless of whether they are perfectly aligned, as long as they overlap at some point.