What is the frequency of violet light w/ a wavelength of 400 nm?

frequency = C / wavelength. c is speed of light

What is the frequency of violet light w/ a wavelength of 400 nm?
using the formula frequency =speed/wavelength


note there are scientific terms for these expressions, you'll have to read them up in/at your own time





frequency=3 x10^8/400x10^-9 = 7.5 x 10^14Hz





^means to the power of the number, the numbers used for the calculation, are the value for the speed of light and the 400nm converting to m respectively
Reply:c = lambda x nu





c is the speed of light 3.0 x 10^8 m/s





lambda is the wavelength





nu is the frequency








Aloha
Reply:3.0E8/4E7=7.5E14
Reply:http://www.google.com/search?hl=en%26amp;lr=%26amp;q...
Reply:Violet light has a wavelength of ~400nm, and a frequency of ~7.5´1014 Hz.