The wavelength of red light is given as 6.5 × 10-7 m. if another wave of an unknown type has a frequency of 5.3 × 1015 hz. what is the relation between the wavelength of the unknown wave and red light? (note: c = 2.998 × 108 m/s) the wavelength of the unknown wave is less than the wavelength of red light. the wavelength of the wave is greater than the wavelength of red light. the wavelength of the wave is equal to the wavelength of red light. the wavelength of the wave is not related to the wavelength of red light.