In preparing this new edition of Modern Physics, we have againrelied heavily on the many helpful suggestions from a large team ofreviewers and from a host of instruc-tor and student users of theearlier editions. Their advice reflected the discoveries that havefurther enlarged modern physics in the first decade of the newcentury, took note of the evolution that is occurring in theteaching of physics in colleges and universities, and recognizedthe growing role of modern physics in the biological sciences. Asthe term modern physics has come to mean the physics of the modernerarelativity and quantum theorywe have heeded the advice of manyusers and reviewers and pre-served the historical and culturalflavor of the book while being careful to maintain the mathematicallevel of the earlier editions. We continue to provide theflexibility for instructors to match the book and its supportingancillaries to a wide variety of teach-ing modes, including bothone- and two-semester courses and media-enhanced courses.
ThefirsteditionsInstructors Solutions Manual with solutions, notjust answers, to all end-of-chapter problems was the first such aidto accompany a physics (and not just a modern physics) textbook,and that leadership has been continued in this edition. TheInstructors Solutions Manual (ISM) is available in print or on CDfor those adopting Modern Physics, sixth edition, for theirclasses. As with the previous editions, the popular paperbackStudents Solution Manual, contain-ing one-quarter of the solutionsin the ISM, is also available.
Wehave continued to includemanyworked-out examples in everychapter, afeature singled out by many instructors as a strength ofthe book. Several new examples at the interface between modernphysics and the biological sciences have been added. As before, wefrequently use combined quantities such as hc, Uc, and ke2 in eV #nm to simplify many numerical calculations.
Wehavecontinuedtheuseofrealdatainfigures,photosofrealpeopleandappa-ratus,and short quotations by many scientists who were key participantsin the development of modern physics. These features, along withthe Notes at the end of each chapter, bring to life many events inthe history of science and help counter the too-prevalent viewamong students that physics is a dull, impersonal collection offacts and formulas.
AnumberofnewApplicationNoteshavebeenaddedtothesixthedition.Thesebriefnotesin the margins of many pages point to a few of the many benefits tosociety that have been made possible by a discovery or developmentin modern physics.
Recognizingtheneedforstudentsonoccasiontobeabletoquicklyreviewkeyconceptsfrom classical physics that relate to topics developed in modernphysics,theClassicalConceptReview(CCR)wasintroducedinthebooksfifthedition.FoundonthebooksWebsiteandidentifiedbyanumberediconCCR in the mar-gin near the pertinent modern physics discussion,the CCR can be printed out to provide a convenient study-supportbooklet. Several new CCRs have been added to the sixth edition. TheCCRs provide concise reviews of pertinent classical con-cepts justa mouse click away.
In Part 1 we discuss the foundations of the physics of themodern era, relativity theory and quantum mechanics. Chapter 1examines the apparent conflict between Einsteins principle ofrelativity and the observed constancy of the speed of light andshows how accepting the validity of both ideas led to the specialtheory of relativity. Chapter 2 concerns the relations connectingmass, energy, and momentum in special relativity and concludes witha brief discussion of general relativity and some experi-mentaltests of its predictions. In Chapters 3, 4, and 5 the developmentof quantum theory is traced from the earliest evidence ofquantization to de Broglies hypothesis of electron waves. Anelementary discussion of the Schrdinger equation is provided inChapter 6, illustrated with applications to one-dimensionalsystems. Chapter 7 extends the application of quantum mechanics tomany-particle systems and intro-duces the important new concepts ofelectron spin and the exclusion principle. Con-cluding thedevelopment, Chapter 8 discusses the wave mechanics of systems oflarge numbers of identical particles, underscoring the importanceof the symmetry of wave functions. Beginning with Chapter 3, thechapters in Part 1 should be stud-ied in sequence because each ofChapters 4 through 8 depends on the discussions, developments, andexamples of the previous chapters.
reference, and coordinate transformationsall importantbackground to our discussions of special relativitymay not havebeen emphasized in many introductory courses. As an aid to a betterunderstanding of the concepts of modern physics, we have includedthe Classical Concept Review on the books Web site. As you proceedthrough Modern Physics,
More A more complete description of the Michelson-Morleyexperiment, its interpretation, and the results of very recentversions can be found on the home page:www.whfreeman.com/tiplermodernphysics6e. See also Figures 1-9through 1-11 here, as well as Equations 1-7 through 1-10. 2b1af7f3a8