Answer:
Option B
Explanation:
One centimeter is equal to10 mm. The reading on the scale lies with in the mark of 12 and its adjacent division.
This length between two sub units is equal to 1 mm. Since the scale shows falls somewhere between 1 mm unit of length, it can be taken as half of it i.e 0.05 mm.
Hence the total length would be 12.05 mm
Option B is correct
