SI unit - Modern unit system, Luminous intensity - A fundamental quantities with the unit candela, Area×height - Expression of volume, Light year - Distance travelled by light in one year in vaccum, peta - Prefix of 10^15, 0.01 mm - Least count of screw gauge, Spring balance - Used to measure weight, Mass - It remains same everywhere, 10mg - Accuracy of physical balance, Accuracy - It represents how close a measurement comes to a true value ,

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