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⚛️ Physics  ·  Units and Measurements  ·  NEET & JEE

In a measurement, accuracy refers to how close the result is to the ___ value:

Answer: true.

  • A true
  • B average
  • C maximum
  • D minimum

Correct answer: A. true

Explanation: Accuracy measures closeness to the true (accepted) value, while precision measures reproducibility.

The 7 SI Base UnitsLengthmetre (m)fundamentalMasskilogram (kg)Timesecond (s)Electric Currentampere (A)Temperaturekelvin (K)Amount ofSubstancemole (mol)LuminousIntensitycandela (cd)Every other physical quantity is derived by combining powers of these 7 base units

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.

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