000			07034 a2200193 4500
020			_a9789325982284
082			_a620 _bVIJ
100			_aVijayakumari, G. _937406
245			_aEngineering physics
250			_aEd.8
260			_c2014 _aNew Delhi _bVikas publishing house pvt. ltd.
300			_axvi,296,46p.
440			_aVikas-GTU students series _950417
505			_aCONTENTS Preface vii Acknowledgement viii Syllabus ix CHAPTER 1: DIELECTRICS 1 Learning Objectives I 1 Introduction 1 2 Polarisation of Dielectric (Effect of an electric field on a dielectric) 2 3 Some Basic Terms Associated with Dielectrics 3 4 Electrical Polarisation Mechanisms 8 5 Internal Field (Local field) 16 6 Clausius-Mossotti Equation 21 7 Types of Dielectric Materials 23 8 Classification of Insulating Materials 25 1.9 Properties of a Good Dielectric Material 26 1.10 Specific Applications of Dielectrics 26 Summary 28 Assignment Problems 28 Questions with Answers 28 Additional Questions 30 Descriptive Answer Questions 30 CHAPTER 2: MAGNETIC MATERIALS 31 Learning Objectives 31 1 Introduction 31 2 Basic Important Terms and Units in Magnetism 31 3 Origin of Magnetic Moments 35 4 Magnetic Moment Due to Electrons 36 5 Classification of Magnetic Materials 43 6 Diamagnetism 44 7 Paramagnetism 45 8 Ferromagnetism 45 9 Antiferromagnctism 46 10 Ferrimagnetism 47 11 Domain Theory of Ferromagnetism 48 12 Hysteresis 50 13 Comparison Between Dia, Para and Ferromagnetic Materials 53 14 Soft and Hard Magnetic Materials 54 15 Ferrites 58 16 Applications of Magnetic Materials in Storage Devices 62 17 Magnetic Recording and Read-out of Information from Magnetic Storage Devices 63 18 Storage of Magnetic Data (Magnetic storage) 66 Summary 70 Assignment Problems 71 Questions With Answers 7/ Additional Questions 75 Descriptive Answer Questions 75 CHAPTER 3: ARCHITECTURAL ACOUSTICS 77 Learning Objectives 77 1 Introduction 77 2 Classification of Sound 77 3 Characteristics of Musical Sound 79 4 Intensity 80 5 Absorption Coefficient 'a' 85 6 Sound Absorbing Materials 86 7 Reverberation and Reverberation Time 87 8 Measurement of Absorption Coefficient 88 9 Factors Affecting Acoustics of Buildings and their Remedies 92 10 Sound Insulation 96 11 Noise Pollution 96 12 Noise Control in Machines 96 Summary 97 Assignment Problems 98 Questions With Answers 98 Additional Questions 100 Descriptive Answer Questions 101 CHAPTER 4: ULTRASONICS 102 Learning Objectives 102 1 Introduction 102 2 Production of Ultrasonic Waves 103 3 Determination of Velocity of Ultrasonic Waves (Acoustic grating method) 108 4 Applications of Ultrasonic Waves 111 5 Applications of Ultrasonics in Industry 119 6 Medical Applications of Ultrasonics 121 7 Other Applications of Ultrasonics 122 Summary 122 Questions With Answers 123 Additional Questions 126 Descriptive Answer Questions 126 CHAPTER 5: SUPERCONDUCTING MATERIALS 128 Learning Objectives 128 1 Introduction 128 2 Superconductor 128 3 Critical Temperature T (Transition temperature) 129 4 Properties of Superconductors 130 5 Types of Superconductors 137 6 Comparison Between Type I and Type II Superconductors 138 7 High T Superconductors 138 8 Applications of Superconductors 141 Summary 145 Assignment Problems 145 Questions With Answers 146 Descriptive Answer Questions 149 CHAPTER 6: LASERS 150 Learning Objectives 150 1 Introduction 150 2 Characteristics of Laser 150 3 Einstein's Theory 151 4 Basic Concepts in Laser Physics 157 6 5 Nd: Yag Laser 159 6 Applications of Laser 161 7 Lasers in Material Processing 161 Summary 167 Questions With Answers 167 Additional Questions 170 Descriptive Answer Questions 170 CHAPTER 7: OPTICAL FIBRE 171 Learning Objectives 171 1 Introduction 171 2 Fibre-Optic System 171 3 The Primary Advantages of Fibre-Optic Communication Compared to Metallic Cable (Electrical) Communication 172 4 Fibre Cable Construction 173 5 Basic Principle—Total Internal Reflection 174 6 Acceptance Angle and Numerical Aperture 175 7 Types of Optical Fibres 181 8 Types of Optical Fibres Based on Material 182 9 Propagation (Transmission) of Light Through an Optical Fibre 182 7 10 Index Profile 184 11 Fibre Configurations 185 12 Difference Between Singlemode Fibre and Multimode Fibre 188 13 Difference Between Step Index Fibre and Graded Index Fibre 189 14 Fibre Optic Communication Link 189 Summary 191 Assignment Problems 192 Questions With Answers 192 Additional Questions 193 Descriptive Answer Questions 194 CHAPTER 8: NANOPHYSICS 195 Learning Objectives 195 1 Introduction 195 2 Classification of Nanostructures 196 3 Synthesis 200 4 Properties of Nanomaterials 207 5 Applications of Nanomaterials 208 6 Carbon Nanotubes (CNTS) 209 7 Structure of Carbon Nanotubes 210 8 Fabrication of Carbon Nanotubes 2'3 8.9 Properties of Carbon Nanotubes 216 8.10 Application of CNT'S 216 Summary 217 Questions With Answers 217 Additional Questions 218 Descriptive Answer Questions 219 CHAPTER 9: ADVANCED ENGINEERING MATERIALS 220 Learning Objectives 220 1 Introduction 220 2 Metallic glasses 220 3 Smart materials 224 4 Shape Memory alloys (SMA) 224 5 Biomaterials230 6 Solar Cells (Photovoltaic cell) 234 7 Fuel Cells 236 8 Lithium Cell 236 9 Ultracapacitors 23? Summary 239 Questions with Answers 240 Additional Questions 244 Descriptive Answer Questions 244 PRACTICALS 247 Practical 1: Ultrasonic Interferometer—Compressibility of a Liquid 249 Practical 2: Laser: Determination of Wavelength, Particle Size, Numerical Aperture and Acceptance Angle 254 Experiment - 2A Experiment - 2B Experiment - 2C Practical 3: Band Gap Determination of a Semiconductor 269 Experiment - 3 : Four Probe Method Practical 4: Diode—Characteristics 275 Practical 5: Zener Diode—Characteristics 281 Practical 6: Hysteresis Loss in a Ferromagnetic Material 287 Practical 7: LED—Characteristics 293 MCQs on Bridge Course in Physics BC1 Solved GTU Question Paper Dec 2013 QP1 Solved GTU Question Paper June 2014 QP10
600			_945130
890			_aIndia
891			_aFT
942			_2ddc
999			_c44761 _d44761