Wavelength times frequency = speed of light 7.5E14 x wavelength = 300,000 m/s
Wavelength in meters = 300,000 divided by 7.5E14
Violet light frequency is 7.5 x 10^14 hertz. As according to the relation between light's speed, frequency and wavelength, λ = c / f , the wavelength of violet light can be found to be approximately 400 nanometers. ;
The wavelength of violet light with a frequency of 7.5 × 1 0 14 Hz is approximately 400 nanometers (nm). This calculation is based on the relationship between frequency and wavelength using the speed of light. Violet light is at the high-frequency, short-wavelength end of the visible spectrum.
;