29.3 Exercise 17

(a) Calculate the energy in eV of an IR photon of frequency $\text{2}.\text{00} \times \text{10}^{\text{13}} \text{ Hz}.$ (b) How many of these photons would need to be absorbed simultaneously by a tightly bound molecule to break it apart? (c) What is the energy in eV of a $\gamma$ ray of frequency $3 . \text{00} \times \text{10}^{\text{20}} \text{ Hz}?$ (d) How many tightly bound molecules could a single such $\gamma$ ray break apart?