JAMB - Physics (1982 - No. 3)
One of the following readings represents the measurement of the length of a metal rod using vernier callipers, Taking the reading accuracy into consideration, the most likely one is
5.15cm
5.165cm
5.0cm
5.160cm
5cm
Explication
The 0.1 mm or 0.01 cm is the reading accuracy of a vernier caliper meaning it can read up to 2 decimal places on the "cm" scale and 1 decimal place on the "mm" scale.