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What is the maximum limit on the frequency that can be used for ground wave communication?(a) 6MHz(b) 2MHz(c) 5MHz(d) 3MHz |
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Answer» Correct option is (d) 3MHz The explanation is: Up to 3MHz, an appreciable amount of energy follows the curvature of the earth and are called as the ground wave. Above 3MHz, the radio waves do not follow the curvature of the earth and are used for a line of sight communication. |
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