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unit 1

physical quantities and measurement

physical quantities and si units. scalars and vectors. measurement techniques. uncertainties, accuracy and precision.

written by vaibhav

1.1
physical quantities
basics of physical quantities. estimation.
1.2
si units
si units. prefixes. derived units.
1.3
errors and uncertainties
systematic and random errors. absolute and percentage uncertainties.
1.4
scalars and vectors
scalar and vector quantities. vector addition and subtraction.