Physics of Everyday Phenomena
9th Edition
ISBN: 9781259894008
Author: W. Thomas Griffith, Juliet Brosing Professor
Publisher: McGraw-Hill Education
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Chapter 18, Problem 16CQ
To determine
If the electron beam in a television tube is striking just one point on the screen at a time, how a full picture can be obtained.
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How does the energy of an electron relate with the distance from the nucleus? O a. The farther a proton is from the nucleus, the greater the electron's energy. O b. The closer a proton is from the nucleus, the greater the electron's energy. O c. The closer a neutron is from the nucleus, the greater the electron's energy. Od. The farther an electron is from the nucleus, the greater its energy. e. The closer an electron is from the nucleus, the greater its energy.
Given that 0.750 mol of a particular atom all release an identical photon, resulting in a
total energy change of -176.0 kJ. Answer the following: (Hint: n does not equal 1 here)
a. What is the wavelength of the photons released?
b. What is the frequency of these photons?
c. What region of the electromagnetic spectrum is this emitted photon in?
a.) Find the frequency in Hertz of radiation with energy of 2.179 x 10-18 J per photon.
b.) What frequency of light would be needed to make an electron in a Hydrogen atom jump from n=1 to n=3?
c.) A spectral line is measured to have a wavelenght of 1000nm. Is this within the Balmer series?
Chapter 18 Solutions
Physics of Everyday Phenomena
Ch. 18 - Prob. 1CQCh. 18 - Prob. 2CQCh. 18 - Prob. 3CQCh. 18 - Prob. 4CQCh. 18 - Prob. 5CQCh. 18 - Prob. 6CQCh. 18 - Prob. 7CQCh. 18 - Prob. 8CQCh. 18 - Prob. 9CQCh. 18 - Prob. 10CQ
Ch. 18 - Prob. 11CQCh. 18 - Prob. 12CQCh. 18 - Prob. 13CQCh. 18 - Prob. 14CQCh. 18 - Prob. 15CQCh. 18 - Prob. 16CQCh. 18 - Prob. 17CQCh. 18 - Prob. 18CQCh. 18 - Prob. 19CQCh. 18 - Prob. 20CQCh. 18 - Prob. 21CQCh. 18 - Prob. 22CQCh. 18 - Prob. 23CQCh. 18 - Prob. 24CQCh. 18 - Prob. 25CQCh. 18 - Prob. 26CQCh. 18 - Prob. 27CQCh. 18 - Prob. 28CQCh. 18 - Prob. 29CQCh. 18 - Prob. 30CQCh. 18 - Prob. 31CQCh. 18 - Prob. 32CQCh. 18 - Prob. 33CQCh. 18 - Prob. 34CQCh. 18 - Prob. 35CQCh. 18 - Prob. 1ECh. 18 - Prob. 2ECh. 18 - If 112 g of silicon (Si) react completely with 64...Ch. 18 - Prob. 4ECh. 18 - Prob. 5ECh. 18 - How many electrons would be required to produce 12...Ch. 18 - Prob. 7ECh. 18 - Prob. 8ECh. 18 - Prob. 9ECh. 18 - Prob. 10ECh. 18 - Prob. 11ECh. 18 - Prob. 12ECh. 18 - An electron beam in a cathode-ray tube passes...Ch. 18 - Prob. 2SPCh. 18 - Prob. 3SPCh. 18 - Prob. 4SP
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- At what velocity does a proton have a 6.0-fm wavelength (about the size of a nucleus)? Give your answer in units of c.arrow_forward(a) If one subshell of an atom has 9 electrons in it, what is the minimum value of l ? (b) What is the spectroscopic notation for this atom, if this subshell is part of the n=3 shell?arrow_forwardUnreasonable Results (a) Assuming it is nonrelativistic, calculate the velocity of an electron with a 0.100-fm wavelength (small enough to detect details of a nucleus). (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?arrow_forward
- A Thomson-type experiment with relativistic electrons. One of the earliest experiments to show that p = mv (rather than p = mv) was that of Neumann. [G. Neumann, Ann. Physik 45:529 (1914)]. The apparatus shown in Figure P4.5 is identical to Thomsons except that the source of high-speed electrons is a radioactive radium source and the magnetic field B is arranged to act on the electron over its entire trajectory from source to detector. The combined electric and magnetic fields act as a velocity selector, only passing electrons with speed v, where v = V/Bd (Equation 4.6), while in the region where there is only a magnetic field the electron moves in a circle of radius r, with r given by p = Bre. This latter region (E = 0, B = constant) acts as a momentum selector because electrons with larger momenta have paths with larger radii. (a) Show that the radius of the circle described by the electron is given by r = (l2 + y2)/2y. (b) Typical values for the Neumann experiment were d = 2.51 104 m, B = 0.0177 T, and l = 0.0247 m. For V = 1060 V, y, the most critical value, was measured to be 0.0024 0.0005 m. Show that these values disagree with the y value calculated from p = mv but agree with the y value calculated from p = mv within experimental error. (Hint: Find v from Equation 4.6, use mv = Bre or mv = Bre to find r, and use r to find y.) Figure P4.5 The Neumann apparatus.arrow_forward(a) What is the momentum of a 0.0100-nm-wavelength photon that could detect details of an atom? (b) What is its energy in MeV?arrow_forwardConstruct Your Own Problem The solar corona is so hot that most atoms in it are ionized. Consider a hydrogen-like atom in the corona that has only a single electron. Construct a problem in which you calculate selected spectral energies and wavelengths of the Lyman, Balmer, or other series of this atom that could be used to identify its presence in a very hot gas. You will need to choose the atomic number of the atom, identify the element, and choose which spectral lines to consider.arrow_forward
- Unreasonable Results (a) What is the binding energy of electrons to a material from which 4.00-eV electrons are ejected by 400-nm EM radiation? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?arrow_forward12 X-rays are generated in a classic tube television, which has a voltage of 30 kW applied to its picture tube. Which two fundamentally different processes mainly cause this X-ray radiation? Which of the two types of radiation is (particularly) suitable for crystal structure analysis? Why? Give detailed reasons for your answer.arrow_forwardA beam of electrons, a beam of protons, and a beam of oxygen atoms each pass at the same speed through a 1-μm-wide slit. Which will producethe widest central maximum on a detector behind the slit?A. The beam of electrons. B. The beam of protons.C. The beam of oxygen atoms. D. All three patterns will be the same.E. None of the beams will produce a diffraction pattern.arrow_forward
- Why is it useful to create an assembly of very slow-moving cold atoms?A. The atoms can be more easily observed at slow speeds.B. Lowering the temperature this way permits isotopes that normally decay in very short times to persist long enough to be studied.C. At low speeds the quantum nature of the atoms becomes more apparent, and new forms of matter emerge.D. At low speeds the quantum nature of the atoms becomes less important, and they appear more like classical particles.arrow_forward2. According the binding energy curve. At large separation distance, the force is completely... 3. . . is the type of x-ray photon which produced when the incident electron passes close to the nucleus of the targetarrow_forwardQ8. The immediate environment of an accelerator or reactor contains large fluxes of gamma rays of energies in the vicinity of 5-10 MeV. What thickness of lead is required to reduce the photon intensity by a factor of 10¹2?arrow_forward
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