How does a radar signal bounce off of a distant object back to the exact spot that it was sent from?
In: Physics
It doesn’t; some just randomly happens to come back the right way. This is why radar is an inverse fourth power system. Objects twice as far away will reflect back a signal 16 times weaker. That’s because, with the usual inverse square law, four times less radar signal reaches the object and then four times less of that makes it back to be received.
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