Units and Measurements

This topic covers concepts such as Physical Quantity, Physical Quantity as Ratios, and Fundamental and Derived Quantities.

This topic covers concepts such as Unit Relations, System of Units, CGS System, MKS System, FPS System, SI System, SI Prefixes, Definition of S.I. Units, Practical Units and its Uses, Plane Angle, and Solid Angle.

This topic covers concepts such as Measuring Instruments, Vernier Callipers, Screw Gauge, Parallax in Parallax Method, Basis in Parallax Method, Parallax Angle in Parallax Method, One Fermi, One Angstrom, One Astronomical Unit, One Light Year, etc.

This topic covers the concept of Measurement of Masses.

This topic covers the concept of Measurement of Time.

This topic covers concepts such as Precision of Measurement, and Accuracy of Measurement.

This topic covers concepts such as Errors in Measurements, Systematic Errors, Instrumental Errors, Imperfect Experimental Techniques, Random Errors, Least Count Errors, Mean Value of Measurement, Fractional Error, Percentage Error, etc.

This topic covers concepts such as on, Calculation of Significant Figures in Subtraction, Calculation of Significant Figures in Multiplication, Calculation of Significant Figures in Division, etc.

This topic covers concepts such as Dimensions, Dimensions of Fundamental Quantities, Dimensional Formula of Derived Quantities, Quantities with Same Dimensions, Dimensions of Important Quantities, and Homogeneity of Dimensions.

This topic covers concepts such as Dimensional Checking of Equations, Deriving Relations Dimensionally, Conversion of Units Dimensionally, and Limitations of Dimensional Analysis.