A radio station transmits isotropically (ie in all directions) electromagnetic radiation at a frequency of 105.9 MHz. At

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A radio station transmits isotropically (ie in all directions)
electromagnetic radiation at a frequency of 105.9 MHz. At a certain
distance from the radio station the intensity of the wave is
I=0.289 W/m2.
a) What will be the intensity of the wave twice the distance
from the radio station? Submit Answer Tries 0/12
b) What is the wavelength of the transmitted signal? Submit
Answer Tries 0/12 If the power of the antenna is 9 MW.
c) At what distance from the source will the intensity of the
wave be 0.145 W/m2? Submit Answer Tries 0/12
d) and what will be the absorption pressure exerted by the wave
at that distance? Submit Answer Tries 0/12
e) and What will be the effective electric field (rms) exerted
by the wave at that distance?