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: |
400 m 25 m 150 m 600 m |
400 m |
The correct answer is Option (1) → 400 m The total height is the sum of Antenna length and building height = 125 m $h=\frac{λ}{4}⇒λ4h$ $λ=4×125=500m$ |