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08/01/2022 4:51 pm
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An antenna is mounted on a 400 m tall building. What will be the wavelength of signal that can be radiated effectively by the transmission tower upto a range of 44 km?
(1) 37.8 m
(2) 605 m
(3) 75.6 m
(4) 302 m
1 Answer
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08/01/2022 4:53 pm
Correct answer: (2) 605 m
Explanation:
h : height of antenna
λ : wavelength of signal
h < λ
λ > h
λ > 400 m