Infrared radiation has a longer wavelength than visible light. Complete the sentence. Choose the answer from the box.
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Compared with the frequency of infrared radiation, the frequency of visible light is __________.

The relationship between wave speed (v), frequency (f), and wavelength (λ) is given by the equation v = f × λ. For all electromagnetic waves in a vacuum, the speed (v) is constant (the speed of light). This means that frequency and wavelength are inversely proportional. If infrared radiation has a longer wavelength than visible light, then visible light must have a higher (greater) frequency.