What is the frequency of a photon with an energy of 3.38 10-19j?

The frequency of a photon can be calculated using the formula E = hf, where E is the energy of the photon, h is Planck's constant (6.63 x 10^-34 J*s), and f is the frequency. Rearranging the formula to solve for frequency gives f = E / h. Plugging in the values, we find that the frequency of a photon with an energy of 3.38 x 10^-19 J is approximately 5.10 x 10^14 Hz.