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A motion that brings about change in the number of wavelengths between the reflector and the radar, in turn causes _________(a) Time shift(b) Phase shift(c) Frequency shift(d) Velocity shiftI got this question in an online quiz.My enquiry is from Aviation Communication Systems topic in portion Aviation Communication Systems of Aircraft Maintenance

Answer»

The correct option is (c) FREQUENCY shift

Explanation: A motion that BRINGS about change in the number of wavelengths between the reflector and the radar, in turn CAUSES a frequency shift in the system. Such a shift may EITHER ENHANCE or degrade the performance of a system.



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