A 100 m long antenna is mounted on a 25 m tall building. The complex can become a transmission tower for waves with wavelength nearly equal to:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 400 m
The total height is the sum of Antenna length and building height = 125 m
$h=\frac{λ}{4}⇒λ4h$
$λ=4×125=500m$