Chapter 2: Units and Measurement

Topic 1: Introduction

Topic 2: The international system of units

Topic 3: Some SI units retained for general use

Topic 4: Measurement of length

Topic 5: Measurement of large distances

Topic 6: Solved problems

Topic 7: Estimation of very small distances: Size of a molecule

Topic 8: Range of lengths

Topic 9: Measurement of mass

Topic 10: Range of masses

Topic 11: Measurement of time

Topic 12: Accuracy, precision of instruments and errors in measurement

Topic 13: Systemic errors

Topic 14: Random errors

Topic 15: Absolute error, relative error and percentage error

Topic 16: Solved problems

Topic 17: Combination of errors

Topic 18: Significant figures

Topic 19: Rules to determine the significant figures in a given number

Topic 20: Rules for arithmetic operations with significant figures

Topic 21: Rounding off the uncertain digits

Topic 22: Dimensions of physical quantities

Topic 23: Dimensional formulae and dimensional equations

Topic 24: Checking the dimensional consistency of equations

Topic 25: Deducing relation among the physical quantities

Multiple choice questions

Questions and answers

Important questions with solutions

Note book

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