One of the first radar devices developed during WWII used microwave radiation of a wavelength that triggers the rotation of water molecules. This was an unfortunate coincidence because
a. it heated up the air around the machine
b. caused diseases in the operators of the radar
c. absorption of microwave radiation by water in the atmosphere interferes with the detection of intended objects
d. was necessary to shield the radar to protect people around it from harmful microwaves that could interact with the water in their bodies
Help with an electromagnetic radiation concept question, please?
(b) seems dubious and (a) unlikely, but both (c) and (d) are plausible. I think it's more likely to be (c), though - I haven't heard of anyone injured by the radar installations.
Reply:d
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