Science, asked by nikprakash02, 5 hours ago

why both faces reading of theodotite are taken

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Answered by ashokbsita

Answer:Errors due to inadjustments of line of collimation and the trunnion axis are eliminated by taking both face readings. The errors due to inaccurate graduations are eliminated by taking the readings at different parts of the circle.

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why both faces reading of theodotite are taken​

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why both faces reading of theodotite are taken