Question

suggest how to measure a variety of lengths of diameters with appropriate precision using micrometre screw Gauge and Vernier callipers with the help of suitable diagrams​

Answer 1

The diameter of wire measured with a Vernier calliper with least count 0.1 mm is S cm, then the percentage error in measurement is

(A) 0.2%

(B) 2%

(C) 5%

(D) 0.5%