$$f = \frac{c}{\lambda}$$
where c is the speed of the wave (e.g., speed of light, sound, etc.).
Frequency represents the number of oscillations or cycles that occur per second, while wavelength refers to the distance between two consecutive peaks or troughs of a wave. As the frequency increases, the wavelength decreases, and vice versa.
This inverse relationship can be observed in various wave phenomena. For instance, in electromagnetic waves (including visible light), higher frequency waves have shorter wavelengths, while lower frequency waves have longer wavelengths. Similarly, in sound waves, higher frequency sounds have shorter wavelengths, and lower frequency sounds have longer wavelengths.
