A monochromatic light source with power output 60.0 W radiates light of wavelength 700 nm uniformly in all directions. Calculate Emax and Bmax for the 700 nm light at a distance of 5.00 m from the source.

Red light of vacuum wavelength 650 nm is travelling in non-magnetic glass with refractiveindex nG = 1.50, then meets an interface with air at an angle of incidence of 75 degrees,and total internal reflection occurs.Calculate the tangential component of the wavevector kG in glass; state two conditionson the transmitted wavevector kA on the air side; and show that this leads to an evanescent wave with amplitude decaying exponentially away from the boundary. Calculate thedistance over which the E-field amplitude drops by a factor of 1/e.

Consider two identical antennas separated by 9.00 m that radiate in phase at 120 MHz. A receiver placed 150 m from both antennas measures an intensity Io. The receiver is moved so that it is 1.8 m closer to one antenna than to the other.

PROBLEM 4: A transmitter is transmitting radio signal of 50 MHz with 100 kW output power. Find the field strength due to space wave at a distance of 100 km when the heights of transmitting and receiving antennas are 100 m and 36 m respectively. Assume that the field strength from the transmitting antenna is same as that of half wave antenna.