Modern Physics
3rd Edition
ISBN: 9781111794378
Author: Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 14, Problem 15P
(a)
To determine
The ratio
(b)
To determine
The number per second that pass through the foil.
(c)
To determine
The number lost from the beam each second by scattering.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Alpha particles of energy 8.4 MeV are incident on a silver foil of thickness 6.5 μm. For a certain value of theimpact parameter, the alpha particles lose exactly half their incident kinetic energy when they reach theirminimum separation from the nucleus. Find the minimum separation, the impact parameter, and the scatteringangle.
What fraction of 5-MeV alpha particles will be scattered through an angle greater than 8° from a gold foil (Z=79, density = 19.3 g/cm^3) of thickness of 10^-8m?
A particle of ionizing radiation creates 4,600 ion pairs in the gas inside a Geiger tube as it passes through. What minimum energy (in J) was deposited, if 21.0 eV is required to create each ion pair?
If all of this energy is converted to thermal energy in the gas, what is its temperature increase (in K), assuming 55.0 cm3 of ideal gas at 0.300 atm pressure? (The small answer is consistent with the fact that the energy is large on a quantum mechanical scale but small on a macroscopic scale. Assume the initial temperature of the gas is 293 K.)
Chapter 14 Solutions
Modern Physics
Ch. 14 - Prob. 1QCh. 14 - Prob. 2QCh. 14 - Prob. 3QCh. 14 - Prob. 4QCh. 14 - Prob. 5QCh. 14 - Prob. 7QCh. 14 - Prob. 8QCh. 14 - Prob. 9QCh. 14 - Prob. 10QCh. 14 - Prob. 11Q
Ch. 14 - Prob. 12QCh. 14 - Prob. 14QCh. 14 - Prob. 15QCh. 14 - Prob. 1PCh. 14 - Prob. 2PCh. 14 - Prob. 3PCh. 14 - Prob. 4PCh. 14 - Prob. 5PCh. 14 - Prob. 6PCh. 14 - Prob. 7PCh. 14 - Prob. 8PCh. 14 - Prob. 9PCh. 14 - Prob. 10PCh. 14 - Prob. 11PCh. 14 - Prob. 12PCh. 14 - The atomic weight of cadmium is 112.41, and its...Ch. 14 - Prob. 15PCh. 14 - Prob. 16PCh. 14 - Prob. 17PCh. 14 - Prob. 19PCh. 14 - Prob. 20PCh. 14 - Prob. 21PCh. 14 - Prob. 22PCh. 14 - Prob. 23PCh. 14 - Prob. 24PCh. 14 - Prob. 25PCh. 14 - Prob. 27PCh. 14 - Prob. 28PCh. 14 - Prob. 29PCh. 14 - Prob. 30PCh. 14 - Prob. 31PCh. 14 - Prob. 32PCh. 14 - Prob. 33PCh. 14 - Prob. 34PCh. 14 - Prob. 35PCh. 14 - Prob. 36PCh. 14 - Prob. 37PCh. 14 - Prob. 38PCh. 14 - Prob. 39PCh. 14 - Prob. 40PCh. 14 - Prob. 41PCh. 14 - Prob. 42PCh. 14 - Prob. 43PCh. 14 - Prob. 45PCh. 14 - Prob. 46PCh. 14 - Prob. 47PCh. 14 - Prob. 48PCh. 14 - Prob. 49PCh. 14 - Prob. 50PCh. 14 - Prob. 51PCh. 14 - Prob. 52PCh. 14 - Prob. 53PCh. 14 - Prob. 54PCh. 14 - Prob. 55PCh. 14 - Prob. 56PCh. 14 - Prob. 57PCh. 14 - Prob. 58PCh. 14 - Prob. 59PCh. 14 - Prob. 60P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- In a Rutherford scattering experiment, assume that an incident alpha particle (radius 1.80 fm) is headed directly toward a target gold nucleus (radius 6.23 fm).What energy must the alpha particle have to just barely “touch” the gold nucleus?arrow_forwardA 10.2 MeV Li nucleus is shot directly at the center of a Ds nucleus. At what center-to-center distance does the Li momentarily stop, assuming the Ds does not move?arrow_forwardA Van de Graaff generator produces a beam of 2.00-MeV deuterons, which are heavy hydrogen nuclei containing a proton and a neutron. (a) If the beam current is 10.0 μA, what is the average separation of the deuterons? (b) Is the electrical force of repulsion among them a significant factor in beam stability? Explain.arrow_forward
- Proton-beam therapy for cancer uses a typical 150 MeV energy to give penetrating power. If five watts of heating power is the maximum that can be tolerated, calculate, i) the number of protons incident per second on the patient, ii) the beam current in amps.arrow_forwardWhat thickness of aluminum is required to reduce 200Kev gamma rays to 10% of its original value? Note that the thickness of half the value at energy Kev 200 in aluminum is 2.14 cmarrow_forwardFor 169Gd, what is the contribution of the asymmetry term in the binding energy formula of the liquid drop model?Enter your answer in MeV to 2 decimal places.arrow_forward
- A swimming pool reactor produces a flux of 3x1016 thermal neutrons m-2 s-1 at 1 m from the reactor center. Assuming a parallel beam of neutrons diffusing up to the surface of the pool where the neutron flux is measured to be 108 m -2 s-1. Calculate the thickness ( x m) of the water layer required. For thermal neutrons the flux is reduced exponentially with the experiment x L-1 where L is the diffusion length ( 2.75 cm in H2O).arrow_forwardRadioactive Pm-147 decays by the release of a beta-particle with an averageenergy of 62.0 keV. A sample of Pm-147 serves as a radionuclide power source. It has anactivity of 4.64×105 Curies. How much thermal power in watts does the Pm-147 sampleproduce?arrow_forwardCalculate the turning point of an alpha particle (Z =2) directed with initial kinetic energy of 2.0 MeV, if the trajectory of the alpha particle was headed directly toward a single gold nucleus (Z =79) (the nuclei in the gold foil in Rutherford’s experiment). How close could the alpha particle in Rutherford’s experiment get to the center of a gold nucleus?arrow_forward
- What energy a particle would be needed to just reach the surface of an Al nucleus if its radius is 4 fm?arrow_forwardFind the fraction of 7.7meV alpha particles that would be deflected at 90degrees or more from a gold foil of thickness 10^-6m.arrow_forwardCalculate the distance of closest approach for a head-on collision between a 5.30 MeV alpha particle and a copper nucleus.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning