Задача 40516.
👍 2
Plane electromagnetic waves, the intensity of which is equal to 12 W / m2, is distributed in a vacuum. The oscillation frequency of wave 2 * 10 ^ 16 Hz. To determine the electromagnetic wave equation with numerical coefficients, initial conditions are randomly selected. In solving the problem, note that the mean square sine (or cosine) for the period is 0.5.
Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
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