Draw a diagram of a wave length

Here's a description to help you visualize and draw a diagram of a wavelength:

A wavelength (λ) is the spatial period of a periodic wave—the distance over which the wave's shape repeats.

To draw it:

1. Draw a horizontal line representing the equilibrium position or zero amplitude.
2. Draw a smooth, repeating curve (like a sine wave) above and below this line.
3. Identify two consecutive points on the wave that are in the same phase. The simplest way to do this is to pick two adjacent crests (the highest points of the wave) or two adjacent troughs (the lowest points of the wave).
4. Draw a double-headed arrow connecting these two points along the horizontal axis. Label this arrow with the symbol λ.

The diagram should clearly show the crests, troughs, and the equilibrium position, with the arrow indicating the distance between two identical points on successive cycles.