How much energy does a photon of frequency 6 and times 1012 Hz have?

The energy of a photon can be calculated using the equation E = hf, where E is the energy, h is Planck's constant (6.626 x 10^-34 J s), and f is the frequency of the photon. Plugging in the values, the energy of a photon with a frequency of 6 x 10^12 Hz would be approximately 3.98 x 10^-21 Joules.