A 25 m long antenna is mounted on an antenna tower.

Question:

A $25 \mathrm{~m}$ long antenna is mounted on an antenna tower. The height of the antenna tower is $75 \mathrm{~m}$. The wavelength (in meter) of the signal transmitted by this antenna would be :

  1. (1) 300

  2. (2) 400

  3. (3) 200

  4. (4) 100


Correct Option: , 4

Solution:

(4)

Length of Antena $=25 \mathrm{~m}=\frac{\lambda}{4}$

$\Rightarrow \lambda=100 \mathrm{~m}$

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