A

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Q. Consider the following:
1. Submarine Communications
2. AM Radio
3. Short Wave Radio
4. Radar
Arrange the above in increasing frequency of the waves used in their applications.

  • (A) 4 3 2 1
  • (B) 1 2 3 4
  • (C) 2 1 4 3
  • (D) 2 3 4 1
  • Correct Answer - Option(B)
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