Physical World and Measurement

This topic covers concepts such as Physical Quantity, Physical Quantity as Ratios, Physical Quantity as Scalars, Physical Quantity as Vectors, Physical Quantity as Tensors, Fundamental and Derived Quantities, Plane Angle, Solid Angle, etc.

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

This topic covers concepts such as Significant Figures, Rules for Counting Significant Figures, Rounding off the Numbers, Rules for Mathematical Operations on Significant Figures, Calculation of Significant Figures in Addition, 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, Homogeneity of Dimensions, etc.