Question: A certain radar installation tracks airplanes by transmitting electromagnetic radiation of wavelength 3 cm. (a) Show that the frequency of this radiation is 10 GHz.

A certain radar installation tracks airplanes by transmitting electromagnetic radiation of wavelength 3 cm.
(a) Show that the frequency of this radiation is 10 GHz.
(b) Show that the time required for a pulse of radar waves to reach an airplane 5 km away and return is 3.3 × 10-5s.

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