A source of electromagnetic waves radiates power uniformly in every direction at a single frequency. At a distance of 5.50 km from the source, a detector measures the intensity of the wave to be 31.0μW/m2. Evaluate the peak value of the magnetic field at the detector due to the wave?
Evaluate the average power radiated by the source?
Now the detector is replaced with a perfectly absorbing sheet normal to the incident flux, with surface area 1.80 m2. Calculate the force on the sheet due to the wave?