defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Communication Systems Elements of a Communication System
Three waves A, B and C of frequencies 1600 kHz, 5 MHz and 60 MHz, respectively are to be transmitted from one place to another. Which of the following is the most appropriate mode of communication:
1
A is transmitted via space wave while B and C are transmitted via sky wave.
2
A is transmitted via ground wave, B via sky wave and C via space wave.
3
B and C are transmitted via ground wave while A is transmitted via sky wave.
4
B is transmitted via ground wave while A and C are transmitted via space wave.