Question

What is the frequency of uv light with a wavelength of 230 nm?

Answer 1

Speed of light C= 3×10⁸ m/s

Given wavelength λ= 230×10⁻⁹m

So frequency f= c/λ

                        = (3×10⁸)/(230×10⁻⁹)

                        = 1.30×10¹⁵Hz