UNITS AND MEASUREMENT (NCERT)
PART 1 [Page No 16 – 22]
2.1 INTRODUCTION [Units, Fundamental Units or Base Units, Derived Units]
2.2 THE INTERNATIONAL SYSTEM OF UNITS [CGS system, FPS system, MKS system, SI system]
2.3 MEASUREMENT OF LENGTH
2.3.1 Measurement of Large Distances [parallax method]
2.3.2 Estimation of Very Small Distances: Size of a Molecule
2.3.3 Range of Lengths
2.4 MEASUREMENT OF MASS
2.4.1 Range of Masses
2.5 MEASUREMENT OF TIME
PART 2 [Page No 22 – 31]
2.6 ACCURACY, PRECISION OF INSTRUMENTS AND ERRORS IN MEASUREMENT
[Systematic errors, Random errors, Least count error]
2.6.1 Absolute Error, Relative Error and Percentage Error
2.6.2 Combination of Errors
(a) Error of a sum or a difference
(b) Error of a product or a quotient
(c) Error in case of a measured quantity raised to a power
2.7 SIGNIFICANT FIGURES
2.7.1 Rules for Arithmetic Operations with Significant Figures
2.7.2 Rounding off the Uncertain Digits
2.7.3 Rules for Determining the Uncertainty in the Results of Arithmatic Calculations
NCERT Physics for XI Chapter 2 Part2-1
NCERT Physics for XI Chapter 2 Part2-2
NCERT Physics for XI Chapter 2 Part2-3
NCERT Physics for XI Chapter 2 Part2-4
NCERT Physics for XI Chapter 2 Part2-5
NCERT Physics for XI Chapter 2 Part2-6
NCERT Physics for XI Chapter 2 Part2-7
NCERT Physics for XI Chapter 2 Part2-8
NCERT Physics for XI Chapter 2 Part2-9
NCERT Physics for XI Chapter 2 Part2-10