The smallest value that can be measured by the measuring instrument is called

Correct option is C

Correct Answer: (c) Least count
Explanation:
· The least count of a measuring instrument is the smallest value that the instrument can measure accurately.
· It indicates the precision of the instrument.
· Example: A ruler with 1 mm divisions has a least count of 1 mm.
Information Booster:
· Least count of common instruments:
· Vernier Caliper: 0.1 mm or 0.02 mm
· Screw Gauge: 0.01 mm
· Stopwatch: 0.1 s or 0.01 s
· Smaller least count → higher precision.