-This part discusses Physics as a branch of Science, Domain of Physics, Measurement, System of units, Definition of SI units, Astronomical unit, parallactic second, Echo method, Parallax method, Avogadro’s hypothesis.

Read More...-This part discusses problems based on, Measurement, System of units, Astronomical unit, parallactic second, Echo method, Parallax method.

Read More...-This part discusses Accuracy & Errors, Vernier caliper, Significant Figures, Rounding Off, Order of Magnitude, Zero error and zero correction, Principle of a Micrometer Screw, Principle of a Micrometer Screw, problems based on these topics are also discussed.

Read More...-This part discusses:

Absolute error, Mean absolute error, Relative error or Fractional error, Percentage error, Error in sum, Error in difference, Error in Product,

Error in division, Error in power, problems based on these topics are also discussed.

-This part discusses dimensions, dimensional equation, Application of Dimensional Analysis, to check the dimensional correctness of a given physical relation Limitations of Dimensional Analysis.

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