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  1. The combined effect of curvature and refraction over a distance L kilometres is
    2. A.

    67.2 L2 mm
    B.

    76.3 L2 mm
    C.

    64.5 L2 mm
    D.

    none of these.

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    Workspace

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    Answer : Option A

    Explanation :

    No answer description available for this question

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