What is the energy of an electromagnetic wave that has a frequency of 5.0 105 Hz Use the equation E hf where h 6.626 10-34 Js.?

The energy of the electromagnetic wave can be calculated using the formula E = hf, where h is Planck's constant and f is the frequency. Plugging in the values, E = (6.626 x 10^-34 J s) * (5.0 x 10^5 Hz) = 3.313 x 10^-28 J.