What is the frequency of electromagnetic radiation with a wavelength of 600 nm? (Speed of light c = 3.0 × 10⁸ m s⁻¹)
ν = c/λ = 3.0×10⁸ / (600×10⁻⁹) = 5.0×10¹⁴ Hz.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Developments Leading to Bohr Model - Electromagnetic Radiation and Spectrum