Which of the following is not a fundamental unit in SI units:
Correct answer: C. Metre3
- A. Kilogram
- B. Ampere
- C. Metre3
- D. Kelvin
Explanation
Cubed meters (m³) is not a fundamental unit in SI. While the meter (m) is a fundamental unit for length, the cubic meter is a derived unit, representing the volume of a three-dimensional space.
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About Measurements
Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.
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