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Question
Match List I with List II:
List I List II Type of propagation Frequencies a. sky waves e. 1.5 MHz b. space wave f. 20 MHz c. ground wave g. 30MHz d. microwave h. 50MHz i. 3 GHz
Match List I with List II:
| List I | List II |
| Type of propagation | Frequencies |
| a. sky waves | e. 1.5 MHz |
| b. space wave | f. 20 MHz |
| c. ground wave | g. 30MHz |
| d. microwave | h. 50MHz |
| i. 3 GHz |
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Solution
The correct option is B a-f,g;b-h;c-e;d-i
Ground Waves have Frequencies up to 2 MHz and hence, c-e.
Sky Waves have frequencies 3MHz to 30 MHz.
Frequencies above 30 MHz propagate as space wave.
Microwaves are a form of electromagnetic radiation with wavelengths ranging from as long as one meter to as short as one millimeter; with frequencies between 300 MHz (0.3 GHz) and 300 GHz.
Ground Waves have Frequencies up to 2 MHz and hence, c-e.
Sky Waves have frequencies 3MHz to 30 MHz.
Frequencies above 30 MHz propagate as space wave.
Microwaves are a form of electromagnetic radiation with wavelengths ranging from as long as one meter to as short as one millimeter; with frequencies between 300 MHz (0.3 GHz) and 300 GHz.
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