The wavelength of some blue light is 470.0 nm. what is the frequency of this blue light?

Given the wavelength of the blue light which is 470.0 x 10^-9 m, we can calculate the frequency of the blue light using the equation:

f = c / wavelength

where f is the frequency and c is the speed of light

Since the speed of light is equal to 2.9979 x 10^8 m/s, substituting the given values:

f = 2.9979 x 10^8 m/s / 4.7 x 10^-9 m

f = 6.379 x 10 ^16 Hz