Question

which is shown by the letter x? trough amplitude crest wavelength

Explanation:

• Trough: The lowest point of a wave.
• Amplitude: The height of a wave from its rest position.
• Crest: The highest point of a wave.
• Wavelength: The distance between two consecutive identical points (e.g., crest - crest or trough - trough) on a wave.

In the diagram, the letter \(X\) (assuming it's the distance between two consecutive crests or troughs as per wave - property labeling norms) represents the wavelength.

Answer:

wavelength