Question

Asked Nov 17, 2019

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A certain radar installation that is used to track airplanes trasmits electromagnetic radiation with a wavelength of 3cm. (A) what is the frequency? (B) What time is required for a pulse of radar waves to reach an airplane 5 km away and return?

Step 1

Given data:

Wavelength of electromagnetic radiation = 3 cm = 0.03 m

Total distance travelled, d = 5+5 = 10 km = 10 x 10^{3} km

Speed of light, c = 3 x 10^{8} m/s

Step 2

(a)

The frequency of radiation can be calculated by the formula:

Step 3

Plugging in the gi...

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