In SI system, the unit of length is:
Correct answer: C. Meter
- A. Millimetre
- B. Centimetre
- C. Meter
- D. Kilometer
Explanation
The meter (m) is the base unit of length in the SI system. It is defined as the distance traveled by light in a vacuum during a specific time interval. The meter is widely used for measuring various lengths, from everyday objects to astronomical distances.
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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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