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  1. To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30, 000, with a camera of 30 cm focal length, the flying height is

    2. A.
    4000 m
    B.
    5000 m
    C.
    6000 m
    D.
    7000 m.

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    Workspace

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    Answer : Option C

    Explanation :

    No answer description available for this question. Let us discuss.

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