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What was the name of the instrument used for the survey work?

ABarometer

BTheodolite

CAltimeter

DCompass

Answer:

B. Theodolite

Read Explanation:

In AD 1800, William Lambton led a survey that started from the southern tip of India for the purpose of mapmaking. Three types of surveys were carried out: the Revenue Survey, the Trigonometric Survey, and the Topographic Survey. The instrument used for the survey was the theodolite


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