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Discussion :: Surveying

  1. An internal focussing type surveying telescope, may be focussed by the movement of
    2. A.

    objective glass of the telescope
    B.

    convex-lens in the telescope
    C.

    concave lens in the telescope
    D.

    plano-convex lens in the telescope.

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    Answer : Option C

    Explanation :

    No answer description available for this question.

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