Chemistry · Structure of atom

Calculate the mass of a photon of sodium light with a wavelength of \( 589 \text{ nm} \) (\( c = 3 \times 10^8 \text{ m s}^{-1} \), \( h = 6.626 \times 10^{-34} \text{ J s} \)).

1. A
   \( 6.22 \times 10^{-34} \text{ kg} \)
2. B
   \( 1.89 \times 10^{-35} \text{ kg} \)
3. C
   \( 3.75 \times 10^{-36} \text{ kg} \)
4. D
   \( 7.42 \times 10^{-30} \text{ kg} \)