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Question: Answered & Verified by Expert
Long-range radio transmission is possible when the radio waves are reflected from the ionosphere. For this to happen the frequency of the radio waves must be in the range:
PhysicsCommunication SystemJEE MainJEE Main 2014 (19 Apr Online)
Options:
  • A 150-500 kHz
  • B 80-150 MHz
  • C 1-3 MHz
  • D 8-25 MHz
Solution:
2612 Upvotes Verified Answer
The correct answer is: 8-25 MHz
Skywaves get reflected from the ionosphere having frequency 3 MHz to 40 MHz.

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