What is the trough of a wave?

The trough of a wave is defined as the lowest point of the wave. In a wave, there are distinct features such as the crest, which is the highest point, and the trough, which is the lowest point. Understanding the trough is essential for analyzing wave properties like amplitude, which is the height from the rest position to either the crest or trough. The concept of a trough is important in various contexts such as in sound waves, water waves, and light waves, as it helps describe the oscillatory nature of these phenomena. Recognizing the differences between a trough and other characteristics of waves enhances comprehension of wave behavior and properties.