This is because the water molecule has to be excited by the radar wave to give a return.
The skin therefore reflects radar waves of the appropriate frequency very efficiently.
Finally, the radar wave emitted can be continuous or pulsed.
This permitted him to study atmospheric effects on radar waves.
These tubes emit radar waves and monitor the track for any fallen obstacles.
When the radar wave strikes the front surface of the dielectric, it is split into two waves.
So the war rockets had to be devised to explode when near anything which reflected their probing radar waves.
Each successive radar wave has to travel farther to reach the car, before being reflected and re-detected near the source.
The radar waves bounce back off the cars that approach, and are registered by the receiving apparatus.
A material's absorbency at a given frequency of radar wave depends upon its composition.