The focal length of a telescope is found to be 0.25 m and the stadia interval of the tacheometer is 2 mm. The stadia interval factor will be A 100 B skippe d 125 C 150 D 200

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Instruments for Surveying

Surveying is the practice that determines the relative three-dimensional positions of many different points on the earth’s surface. There are various instruments used in Surveying like Theodolites, Total station, Tripod stands, Plane table, etc. for measuring horizontal angle, vertical and sloping angle, which are very useful for giving accurate and precise measurement.