What is the Difference Between Wavelength and Frequency?

The main difference between wavelength and frequency lies in what they represent in terms of a wave's properties. Here are the key differences between the two concepts:

• Frequency: Frequency refers to the number of complete wave cycles per second. It is a measure of time and is denoted by the symbol f. The SI unit of frequency is Hertz (Hz).
• Wavelength: Wavelength is the distance covered to complete one wave. It is a measure of distance and is denoted by the symbol λ (lambda). Wavelength is the distance between two closest points in phase with each other, such as two adjacent peaks or troughs on a wave.

The relationship between frequency and wavelength can be expressed through the speed of the wave. The wave speed (v) is equal to the product of its frequency (f) and wavelength (λ), represented by the equation v = fλ. This relationship implies that as the wavelength increases, the frequency decreases, and vice versa.

In summary:

• Frequency measures the time it takes for a wave to complete one cycle.
• Wavelength measures the distance between two consecutive points in phase on a wave.
• The relationship between frequency and wavelength is determined by the wave speed.

Comparative Table: Wavelength vs Frequency

Here is a table that highlights the differences between wavelength and frequency:

Wavelength is the distance between two consecutive points in a wave that are in phase, such as crests or troughs. On the other hand, frequency refers to the number of wave cycles that occur per unit of time, usually measured in hertz (Hz).