Final answer:
A light wave with a long wavelength is likely to have a low frequency due to the inverse relationship between wavelength and frequency described by the wave equation.
Step-by-step explanation:
If a light wave has a long wavelength, it is likely to have a low frequency. This relationship between wavelength and frequency is a fundamental principle in wave theory and it's defined by the wave equation; speed = wavelength x frequency. In the case of light (a type of electromagnetic wave), the speed is constant (speed of light). Therefore, if the wavelength increases, the frequency must decrease to keep the speed constant, and vice versa. Thus, a long wavelength corresponds to a low frequency.
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