Why do we use microwaves and not radiowaves in RADAR even when radio waves have higher wavelength ? ?
I am confused. One is the other. But I’ll make some assumptions and try to answer what you may have been asking? THe reason radars use the wavelength (frequency) that they use is to provide maximum resolution of the intended target. Various types of radar use different wavelengths to ‘see’ or resolve different types of objects. Weather radar uses one frequency while a surface search radar uses another. Target acquisition radars use a different frequency than do target tracking radars. Missiles use a different frequency still. All of these are selected for their characteristics and performances under real situations. A lower frequency with more power can bend around the curvature of the earth better than a high-pitched frequency. But it requires much more power, and might miss a smaller, more agile, target. Radars are ‘tuned’ for the work they must do.
