How can you tell the wavelength of blue light if given it's frequency?

To determine the wavelength of blue light if given its frequency, you can use the equation:

c = λν

Where:
c represents the speed of light, which is approximately 3.00 x 10^8 meters per second.
λ represents the wavelength of the light.
ν represents the frequency of the light.

To calculate the wavelength, rearrange the equation to solve for λ:

λ = c / ν

If you are given the frequency of the blue light, you can substitute it into the equation along with the known speed of light to find the wavelength.