Unformatted text preview: left antenna a time ago.
(This time delay of the left signal can be easily accomplished with the proper
electronic circuit.) Find the time delay if the object t be viewed is at an angle
θ to the vertical.
2. Stealth aircraft are designed to not reﬂect radar, whose wavelength is
typically 2 cm , by using an antireﬂecting coating. Ignoring any change in
wavelength in the coating, estimate its thickness.
3. A radar speed detector works by reﬂecting microwaves oﬀ a car and
measuring the change in the frequency. If waves of frequency 4 × 1010 Hz are
measured to be 2 × 103 Hz lower in frequency af...
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This note was uploaded on 02/01/2013 for the course PHY 114 taught by Professor Jordan during the Spring '08 term at Rochester.
- Spring '08