Answer
A photon of red light has less energy than a photon of blue light. Radio waves have a smaller quantum of energy than x-rays.
Work Step by Step
For photons, E = hf, where E is the energy, h is Planck's constant, and f is the photon's vibrational frequency. Blue light and x-rays have higher frequency than red light and radio waves, respectively.
This is discussed on pages 584-585.
