What is the energy of an electromagnetic wave with a frequency of 8x1012Hz?

The energy of an electromagnetic wave can be calculated using the formula E = hf, where E is the energy, h is Planck's constant (6.626 x 10^-34 Js), and f is the frequency. Plugging in the values, we find that the energy of a wave with a frequency of 8x10^12 Hz is approximately 5.301 x 10^-21 J.