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 appropriate mode of communication?

Three wave 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?

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:

Three waves A,B and C of frequencies 1500 KHz. 6MHz and 50 MHz respectively are to be transmitted from one place to another. Which of the following is the most appropriate mode of communciation?

Three waves A,B and C of frequencies 1500 KHz. 6MHz and 50 MHz respectively are to be transmitted from one place to another. Which of the following is the most appropriate mode of communciation?

A wave can transmit ...... from one place to another

Four waves A, B, C, D of frequencies 6 MHz. 8 MHz, 10 MHz and 4 MHz respectively are beamed in the same direction, 10 communicate via sky waves. Which one of these is likely 10 travel the longest distance in the ionosphere before suffering total internal reflection ?