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
