As a domain expert in physics, I can explain the relationship between energy and frequency. According to the principles of quantum mechanics and the famous equation by Albert Einstein, E = hν, where E is the energy of a photon, h is Planck's constant, and ν (nu) is the frequency of the photon. This equation demonstrates that the energy of a photon is indeed directly proportional to its frequency**. So, in English: The energy of a photon is directly proportional to its frequency. As the frequency increases, the photon's energy also increases, and vice versa. read more >>

From this equation, it is clear that the energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength. Thus as frequency increases (with a corresponding decrease in wavelength), the photon energy increases and visa versa.read more >>