Question

The wavelength of a particular color of green light is 504 nm.

The frequency of this color is ___sec-1.

Answer 1

c = freqency x wavelength
3E8 m/s = freqency x 504E-9 m

Answer 2

am confused

Answer 3

An explanation like that doesn't help. Confused about what?

Answer 4

c = speed of light = 3 x 10^8 meters/second
frequency is what you solve for. That's the unknown
wavelength = 504 nm = 504 x 10^-9 meters