College Physics

Problems & Exercises 29.1 Quantization of Energy 1.A LiBr molecule oscillates with a frequency of1.7×10^13 Hz.(a) What is th ...

35.(a) How far away must you be from a 650-kHz radio station with power 50.0 kW for there to be only one photon per second per s ...

68.The decay energy of a short-lived particle has an uncertainty of 1.0 MeV due to its short lifetime. What is the smallest life ...

1062 CHAPTER 29 | INTRODUCTION TO QUANTUM PHYSICS This content is available for free at http://cnx.org/content/col11406/1.7 ...

30 ATOMIC PHYSICS Figure 30.1Individual carbon atoms are visible in this image of a carbon nanotube made by a scanning tunneling ...

Introduction to Atomic Physics From childhood on, we learn that atoms are a substructure of all things around us, from the air w ...

Figure 30.2The position of a pollen grain in water, measured every few seconds under a microscope, exhibits Brownian motion. Bro ...

The Electron Gas discharge tubes, such as that shown inFigure 30.4, consist of an evacuated glass tube containing two metal elec ...

Figure 30.6Diagram of Thomson’s CRT. (credit: Kurzon, Wikimedia Commons) Figure 30.7This schematic shows the electron beam in a ...

important pieces of which he began to publish in 1897, Thomson was awarded the 1906 Nobel Prize in Physics. In retrospect, it is ...

of 10 within a few years to a value of−1.60×10 −19 C. He also observed that all charges were multiples of the basic electron cha ...

foil much like a supersonic bowling ball would crash through a few dozen rows of bowling pins. Thomson had envisioned the atom t ...

PhET Explorations: Rutherford Scattering How did Rutherford figure out the structure of the atom without being able to see it? S ...

Figure 30.15Part (a) shows, from left to right, a discharge tube, slit, and diffraction grating producing a line spectrum. Part ...

For an Integrated Concept problem, we must first identify the physical principles involved. In this example, we need to know (a) ...

Figure 30.17The planetary model of the atom, as modified by Bohr, has the orbits of the electrons quantized. Only certain orbits ...

greater attractive force between the electron and nucleus. The magnitude of the centripetal force ismev^2 /rn, while the Coulomb ...

(30.27) E 0 = 2 π^2 qe^4 mek^2 h^2 = 13.6 eV. Thus, for hydrogen, (30.28) En= −13.6 eV n^2 (n= 1, 2, 3, ...). Figure 30.20shows ...

is theRydberg constant. Thus, we have used Bohr’s assumptions to derive the formula first proposed by Balmer years earlier as a ...

entirely into photon energy. The highest-energy x ray produced is one for which all of the electron’s energy was converted to ph ...