JEE PYQ: Communication System Question 1
Question 1 - 2021 (16 Mar 2021 Shift 1)
A 25 m long antenna is mounted on an antenna tower. The height of the antenna tower is 75 m. The wavelength (in meter) of the signal transmitted by this antenna would be:
(1) 300
(2) 400
(3) 200
(4) 100
Show Answer
Answer: (4)
Solution
Length of Antenna $= 25$ m $= \frac{\lambda}{4}$, so $\lambda = 100$ m.