The different magnitudes of same physical quantities are measured by comparing them to:
Correct answer: B. Standard size
- A. Available scale
- B. Standard size
- C. Each other
- D. Other physical quantities
Explanation
When the different magnitudes of certain physical quantities are measured then it should be measured according to a standard measure which is the same for everyone throughout the world. So that the distinguished quantities and the differences in the magnitude can be perfectly measured.
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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.
Practise Measurements
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