Wavelength and frequency are closely related in the electromagnetic spectrum. Wavelength is the distance between two wave peaks, while frequency is how many waves pass a point per second. As the wavelength gets shorter, the frequency gets higher. Example Radio waves have long wavelengths and low frequency, while gamma rays have very short wavelengths but high frequency. They are both part of the electromagnetic spectrum but have different uses and energy levels. FormulaSpeed of light = Wavelength × FrequencySince the speed of light is constant, when one increases, the other decreases. This is why understanding both helps us use EM waves in technology, like radios, X-rays, and microwaves.