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Units And Measurement
Question
What is the need of measurement?
Solution
To get the complete knowledge of any physical quantity, measurement is needed. Measurement of any physical quantity involves comparison with a certain basic, arbitrarily chosen, internationally accepted reference standard called unit. Knowledge without measurement is incomplete and unsatisfactory.
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Some More Questions From Units and Measurement Chapter
What is the need of measurement?
Define physical quantity.
Give four examples of physical quantities.
Define unit.
What are the two main required characteristics of a unit?
Can we use same units for different physical quantities?
Can we use different units to measure same physical quantity?
To measure a physical quantity X, the unit U is repeatedly used for n times. What is the magnitude of physical quantity?
Does the numerical factor in the quantitative measurement depend on the system of unit used?
Is one unit sufficient to measure a physical quantity?
Mock Test Series
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