Answer: 4.35 mm.
- A 4.25 mm
- B 4.30 mm
- C 4.35 mm
- D 4.80 mm
Correct answer: C. 4.35 mm
Explanation: Least count = 0.01 mm; observed = 4.30 mm; corrected = observed − zero error = 4.30 − (−0.05) = 4.35 mm.
The 7 SI base units. All derived units (newton, joule, watt, volt, etc.) can be expressed as combinations of these 7 fundamental units raised to various powers.
Concept context
SI base units, dimensional analysis, significant figures, and error propagation. The toolkit every physics calculation relies on.