Final answer:
Wave-particle duality only applies to microscopic particles, making the statement false for macroscopic objects. Also, wave amplitudes affect each other through interference, not just when they are precisely aligned, making that statement false as well.
Step-by-step explanation:
Wave-Particle Duality and Wave Interference
The concept of wave-particle duality refers to the property of particles behaving both as waves and as particles. This is a fundamental principle of quantum mechanics that applies to microscopic particles, such as electrons and photons. The statement that wave-particle duality exists for objects on the macroscopic scale is false. As objects become larger, the wavelike properties become so minuscule that they are not observable.
Regarding the interaction of waves, it's a common misunderstanding that waves affect each other's amplitude only when they are perfectly aligned. In reality, waves affect each other's amplitudes through a process known as interference, which can happen even when they are not perfectly aligned. When two or more waves meet, they superpose to form a new wave pattern. This can increase, decrease, or have no effect on the amplitude of a wave depending on the relative phase and alignment of the interacting waves. So, the statement that the amplitude of one wave is affected by the amplitude of another wave only when they are precisely aligned is false.