Basic Mathematics and Measurements
11.0 Length Measuring Instruments
11.1 Vernier Callipers
11.2 Zero error of vernier calliper
11.3 Vernier calliper solved examples
11.4 Screw Gauge
11.5 Zero error of screw gauge
11.6 Screw gauge solved examples
11.0 Length Measuring Instruments
11.2 Zero error of vernier calliper
11.3 Vernier calliper solved examples
11.4 Screw Gauge
11.5 Zero error of screw gauge
11.6 Screw gauge solved examples
Length is a fundamental physical quantity. The device generally used in everyday life for measurement of the length is a metre scale. By metre scale, we can measure up to an accuracy of $1\ mm$. So, the least count of the metre scale is $1\ mm$.
To measure the length with greater accuracy following instruments are used.
1. Vernier callipers
2. Screw gauge
