Answer Posted / arul

RADAR means RAdio Detection And Ranging. The RADAR sysytem
has a receiver emits either radio or microwaves that are
refelected by the target and detected by the receiver which
will be placed in the same location as transmitter.Distance
is measured by the time it takes the pulse to travel to and
from the target.Knowing the frequency the wave length is
determined by dividing the frequency in MHz into give the
wave length in meters. Radar is used in marine industries
and military application.

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