Which of the following sets cannot enter into the list of fundamental quantities in any system of units?
Correct answer: B. Length, time, velocity
- A. Length, mass, temperature
- B. Length, time, velocity
- C. Length, time, mass
- D. Mass, time, electric current
Explanation
Length, time and velocity cannot enter into the list of fundamental quantities because velocity can be expressed in terms of length and time.
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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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