The least count of an instrument refers to the smallest measurement that can be accurately read or recorded.

• Least count is determined by the smallest division on the instrument's scale.

• It helps in det...read more

1 Theodolite

1-vernicr theodolites-20 "sec

2-preciseoptical theodolite-1"sec

3-prismatic compass-30'(minute)

4-levelling staff-5mm

5-Vernier coliperor scale-0.02mm

6-total station

1-Angle-1'

2Distance...read more