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Three waves A, B and C of frequencies 16...

Three waves `A`, `B` and `C` of frequencies `1600kHz`, `5MHz` and `60 MHz`, respectively are to be transmitted from one place to another. Which of the following is the most appropriate mode of communications:

A

A is transmitted via spaced wave while B and C are transmitted via sky wave

B

A is transmitted via ground wave, B via sky wave and C via space wave

C

B and C are transmitted via ground wave while A is transmitted via sky wave

D

B is transmitted via ground wave while A and C are transmitted via space wave

Text Solution

Verified by Experts

The correct Answer is:
B
Mode of communication frequency range
Ground wave propagation -530 kHz to 1710 kHz
Sky wave propagation -1710 kHz to 40 MHz
Space wave propagation -54 MHz to 4.2 GHz
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