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Discussion :: Communication Systems

  1. Assertion (A): Radio transmission is by sky waves

    Reason (R): Waves having frequencies higher than 30 MHz penetrate the atmosphere and do not return to earth.

  2. A.
    Both A and R are correct and R is correct explanation of A
    B.
    Both A and R are correct but R is not correct explanation of A
    C.
    A is correct but R is wrong
    D.
    A is wrong but R is correct

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    Answer : Option B

    Explanation :

    No answer description available for this question.


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