The study of vibrations and waves is central to physics and engineering disciplines.This text contains a detailed treatment of vibrations and waves at an introductory level suitable for second and third year students. It builds on first year physics and emphasizes understanding of vibratory motion and waves based on first principles. Since waves appear in almost all branches of physics and engineering, readers will be exposed to many different types of waves; this study aims to draw together their similarities, by examining them in a common language. The book is divided into three parts: Part I contains a preliminary chapter that serves as a review of relevant ideas of mechanics and complex numbers. Part II is devoted to a detailed discussion of vibrations of mechanical systems. This part covers simple harmonic oscillator, coupled oscillators, normal coordinates, beaded string, continuous string, and Fourier series. It concludes with a presentation of stationary solutions of driven finite systems. Part III is concerned with waves, focusing on the discussion of common aspects of all types of waves, and the applications to sound, electromagnetic, and matter waves are illustrated. Finally, relevant examples are provided at the end of the chapters to illustrate the main ideas, and better the reader's understanding.
At a time when ordinary courage has become rare, one has to look up to the lives of those who stood for dissent in the colonial era. Back in the 19th century, Justice Syed Mahmood, son of the great social reformer Sir Syed Ahmad Khan, became the first judge to resist colonial power by espousing the cause of judicial independence. At the age of just 32, he not only remains the youngest, but also the first Indian Muslim and first north Indian to be appointed as a High Court judge in India. Endowed with a judicial acuity ahead of his times, a number of his dissents were later accepted by the courts, and continue to be the law. This book chronicles the triumphs and tragedies of Syed Mahmood's life, and his contribution in shaping the consciousness of post 1857 India. With an impressive array of research, perception and analysis, the book succeeds in exhuming a seminal figure from the dust of history, and showcases the past speaking to the present.
It was a pleasant surprise for me Ashraf Chaudhry, a capable and inspiring professor of English Literature and my friend and my colleague of 35 years, turn into a forceful political analyst, an enlightened commentator of national and international affairs, and an active sponsor of interfaith harmony in a foreign land. I have been reading his discourses on varied subjects with interest and am always impressed by the deep thinking and extensive reading that goes into writing them. This collection is a valuable contribution and should be welcomed by those who wish to read thoughts of a mature Pakistani mind in real perspective. Prof. M. H. Hamdani, former Principal, F. G. Syed College, Rawalpindi ****** Mr. Ashraf Chaudhry is one of Pakistan Link's most distinguished writers. His articles are studded with facts and figures that are strikingly revealing and wholly incontrovertible. The more learned and serious-minded readers admire Mr. Chaudhry for his insight, scholarship, and perspicacity. Akhtar Mahmud Faruqui, editor, Pakistan Link. ****** "In Rawalpindi, Professor Ashraf Chaudhry and I were neighbors. He was my senior. When the sub continent was divided in 1947, and PAkistan emerged as a new State, our parents migrated from the Indian territory to Pakistan. Prof. Chaundhry was a very brilliant and hard working student from his very childhood. He is a self-made man. I have read some of his articles and columns in the Pakistan Link. I was much impressed by the candidness and clarity of vision he brings to his writings. He supports democrary and condemns dictaorship. He writes on human rights and human values and believes in the presence of goodness in all human beings. He rejects sectarian and radical approach in religion, and stresses on the need of a pluralist aspect of religion. Often he underpins the problems, offers cautiously some solutions, and is never hesitant in naming the culprits. He rewards and censures the same political actors, depending on their performance, and hold no personal grudge against any one of them." Dr. Maqsood Jafri, author and political activist.
This book focuses on the emergence of COVID-19 and climate change as twin mega risks to cities of both developed and developing countries. The work analyses how the pandemic has transformed city functions, promoted remote working, and affected socializing, education and learning patterns, recreation, as well as shopping and entertainment. It discusses the lessons learned from these two Mega Risks, the evolution of urban patterns and functions in their wake, and provides visionary thinking for the improvement of cities from the experiences gained. The COVID-19 Pandemic and climate change are both posing serious threats to cities’ future. Together, they demand changes in the ways cities’ function and operate. The work presents a case for a better understanding of the twin mega risks, the magnitude of their impacts, the responses of cities in combating these issues, and planning strategies for preparing, mitigating and adapting to these and future risks. The book is designed to provide reliable resource materials for a wide audience such as planners, professional practitioners, scientists, students, teachers and researchers working in various fields including geography, environmental sciences, social sciences, policy and planning.
This book studies the engagement of various Muslim communities with Bihar politics from colonial times to present-day India. It debunks several myths in highlighting Muslim resistance to the Two-Nation theory, and counters the ‘Isolation Syndrome’ faced by Muslim communities after Independence. Using rare archival sources and hitherto unexamined Urdu texts, this book offers a nuanced exploration of complex themes such as the struggle against Bengali hegemony, communalism, regionalism and alienation before Independence, recent language politics, the political assertion of low-caste Muslims in current Bihar, as well as their quest for social and gender justice. An important contribution to the study of South Asian Islam, this book will interest students and scholars of modern Indian history, politics, sociology, religion, gender, and minority studies.
The University Physics provides students with a solid foundation of introductory physics. The complete University Physics covers topics in Mechanics, Gravitation, Waves, Sound, Fluids, Thermodynamics, Electricity, Magnetism, and Optics. Various concepts and ideas of physics are developed starting from a few basic principles. The examples in the book contain both the numerical and the symbolic problems. The level of rigor is suitable for students concurrently enrolled in the Calculus sequence in Mathematics. Detailed guided exercises and challenging problems help students develop their skills in problem solving. Volume 1: Fundamentals of Mechanics - Vectors, Kinematics, Newton's Laws of Motion, Impulse, Energy, Rotation Volume 2: Applications of Mechanics - Physics in Non-inertial Frames, Newton's Law of Gravitation, Simple Harmonic Motion, Mechanical Waves, Sound, Stress and Strain in Materials, Fluid Pressure, Fluid Dynamics. Volume 3: Heat, Temperature, Specific Heat, Thermal Expansion, Ideal Gas Law, First Law of Thermodynamics, Work by Gas, Second Law of Thermodynamics, Heat Engine, Carnot Cycle, Entropy, Kinetic Theory, Maxwell's Velocity Distribution. Volume 4: Static Electricity, Coulomb's Law, Electric Field, Gauss's Law, Electric Potential, Metals and Dielectrics, Magnets, Magnetic Force, Steady Current, Magnetic Field, Ampere's Law, Kirchhoff's Rules, Electrodynamics, Faraday's Law, Maxwell's Equations, AC Circuits. Volume 5: Law of Reflection, Snell's Law of Refraction, Optical Elements, Optical Instruments, Wave Optics, Interference, Young's Double Slit, Michelson Interferometer, Fabry-Perot Interferometer, Huygens-Fresnel Principle, Diffraction.
The study of vibrations and waves is central to physics and engineering disciplines.This text contains a detailed treatment of vibrations and waves at an introductory level suitable for second and third year students. It builds on first year physics and emphasizes understanding of vibratory motion and waves based on first principles. Since waves appear in almost all branches of physics and engineering, readers will be exposed to many different types of waves; this study aims to draw together their similarities, by examining them in a common language. The book is divided into three parts: Part I contains a preliminary chapter that serves as a review of relevant ideas of mechanics and complex numbers. Part II is devoted to a detailed discussion of vibrations of mechanical systems. This part covers simple harmonic oscillator, coupled oscillators, normal coordinates, beaded string, continuous string, and Fourier series. It concludes with a presentation of stationary solutions of driven finite systems. Part III is concerned with waves, focusing on the discussion of common aspects of all types of waves, and the applications to sound, electromagnetic, and matter waves are illustrated. Finally, relevant examples are provided at the end of the chapters to illustrate the main ideas, and better the reader's understanding.
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