COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 26, Problem 90QAP
To determine
Change in energy as a function of scattering angle.
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A light source of wavelength λ illuminates a metal and ejects photoelectrons with a maximum kinetic energyof 1.00 eV. A second light source with half the wavelength of the first ejects photoelectrons with a maximumkinetic energy of 4.00 eV.• Determine the work function of the metal
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Chapter 26 Solutions
COLLEGE PHYSICS
Ch. 26 - Prob. 1QAPCh. 26 - Prob. 2QAPCh. 26 - Prob. 3QAPCh. 26 - Prob. 4QAPCh. 26 - Prob. 5QAPCh. 26 - Prob. 6QAPCh. 26 - Prob. 7QAPCh. 26 - Prob. 8QAPCh. 26 - Prob. 9QAPCh. 26 - Prob. 10QAP
Ch. 26 - Prob. 11QAPCh. 26 - Prob. 12QAPCh. 26 - Prob. 13QAPCh. 26 - Prob. 14QAPCh. 26 - Prob. 15QAPCh. 26 - Prob. 16QAPCh. 26 - Prob. 17QAPCh. 26 - Prob. 18QAPCh. 26 - Prob. 19QAPCh. 26 - Prob. 20QAPCh. 26 - Prob. 21QAPCh. 26 - Prob. 22QAPCh. 26 - Prob. 23QAPCh. 26 - Prob. 24QAPCh. 26 - Prob. 25QAPCh. 26 - Prob. 26QAPCh. 26 - Prob. 27QAPCh. 26 - Prob. 28QAPCh. 26 - Prob. 29QAPCh. 26 - Prob. 30QAPCh. 26 - Prob. 31QAPCh. 26 - Prob. 32QAPCh. 26 - Prob. 33QAPCh. 26 - Prob. 34QAPCh. 26 - Prob. 35QAPCh. 26 - Prob. 36QAPCh. 26 - Prob. 37QAPCh. 26 - Prob. 38QAPCh. 26 - Prob. 39QAPCh. 26 - Prob. 40QAPCh. 26 - Prob. 41QAPCh. 26 - Prob. 42QAPCh. 26 - Prob. 43QAPCh. 26 - Prob. 44QAPCh. 26 - Prob. 45QAPCh. 26 - Prob. 46QAPCh. 26 - Prob. 47QAPCh. 26 - Prob. 48QAPCh. 26 - Prob. 49QAPCh. 26 - Prob. 50QAPCh. 26 - Prob. 51QAPCh. 26 - Prob. 52QAPCh. 26 - Prob. 53QAPCh. 26 - Prob. 54QAPCh. 26 - Prob. 55QAPCh. 26 - Prob. 56QAPCh. 26 - Prob. 57QAPCh. 26 - Prob. 58QAPCh. 26 - Prob. 59QAPCh. 26 - Prob. 60QAPCh. 26 - Prob. 61QAPCh. 26 - Prob. 62QAPCh. 26 - Prob. 63QAPCh. 26 - Prob. 64QAPCh. 26 - Prob. 65QAPCh. 26 - Prob. 66QAPCh. 26 - Prob. 67QAPCh. 26 - Prob. 68QAPCh. 26 - Prob. 69QAPCh. 26 - Prob. 70QAPCh. 26 - Prob. 71QAPCh. 26 - Prob. 72QAPCh. 26 - Prob. 73QAPCh. 26 - Prob. 74QAPCh. 26 - Prob. 75QAPCh. 26 - Prob. 76QAPCh. 26 - Prob. 77QAPCh. 26 - Prob. 78QAPCh. 26 - Prob. 79QAPCh. 26 - Prob. 80QAPCh. 26 - Prob. 81QAPCh. 26 - Prob. 82QAPCh. 26 - Prob. 83QAPCh. 26 - Prob. 84QAPCh. 26 - Prob. 85QAPCh. 26 - Prob. 86QAPCh. 26 - Prob. 87QAPCh. 26 - Prob. 88QAPCh. 26 - Prob. 89QAPCh. 26 - Prob. 90QAPCh. 26 - Prob. 91QAPCh. 26 - Prob. 92QAPCh. 26 - Prob. 93QAPCh. 26 - Prob. 94QAPCh. 26 - Prob. 95QAPCh. 26 - Prob. 96QAPCh. 26 - Prob. 97QAPCh. 26 - Prob. 98QAPCh. 26 - Prob. 99QAPCh. 26 - Prob. 100QAPCh. 26 - Prob. 101QAPCh. 26 - Prob. 102QAPCh. 26 - Prob. 103QAPCh. 26 - Prob. 104QAP
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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
- (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 square meter? Assume no reflections or absorption, as if you were in deep outer space. (b) Discuss the implications for detecting intelligent life in other solar systems by detecting their radio broadcasts.arrow_forwardFind the energy of the following. Express your answers in units of electron volts, noting thet 1 eV = 1.60 x 10 19 J. (a) a photon having a frequency of 7.40 x 10 Hz 3066.375 • V ev (b) a photon having a wavelength of 8.60 x 10 nm 3.56E-12 Calculate the frequency of light carresponding to the given wavelength and from the frequency calculate the energy of a photon with that wavelength. eV Need Help? Read It Master Itarrow_forwardQuantum efficiency of a photodiode is 60 percent at a wavelength of 1.6 µm. • Find its responsivity at this wavelength. • What is the maximum possible size of the bandgap for this material?arrow_forward
- c) i) Calculate the energy loss of a photon when it is Compton-scattered through an angle of 180°. ii) iii) Calculate the energy loss of a photon when it undergoes two successive Compton scatterings through an angle of 90° each. Compare answers to (a) and (b).arrow_forwardMY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) If the power output of a 670 kHz radio station is 49.0 kW, how many photons per second are produced? photons/s (b) If the radio waves are broadcast uniformly in all directions, find the number of photons per second per square meter at a distance of 125 km. Assume no reflection from the ground or absorption by the air. photons/(s · m²) Additional Materialsarrow_forward|In a photoelectric effect experiment, the frequency of photons bombarding the surface is increased until photoelectrons just start to leave the surface. If this occurs at a frequency of 6.0 x 1014 Hz, what is the work function of the surface?arrow_forward
- 4) Consider the Compton effect, write down the formula giving the difference of the wavelengths for scattered and incident light in terms of the scattering angle of the photon and the Compton wavelength. a) What is the difference in the wavelengths if the scattered photon is perpendicular to the incident one? b) Calculate the absolute maximum and minimum of the difference in the wavelengths. (Hint: take the derivative of the r.h.s. w.r.t. the angle and set it equal to zero) c) In all 3 cases find the angle the scattered electron makes with respect to the horizontal.arrow_forwardThree light sources are shone onto a plant: i) ii) iii) How much light (i.e. total number of photons) is available for the plant to use for photosynthesis over an 8 hr photoperiod, considering the plant has a total leaf area of 0.175 m? 320 nm at an intensity of 200 umol photons.ms 440 nm at an intensity of 300 umol photons.ms 675 nm at an intensity of 300 umol photons.ms'arrow_forwarda) Calculate the energies of the scattered photons for the angles given below Angle (degrees) 25 40 Energy of the scattered photon (theoretical) (KeV) b) What are the parameters that increase the energy of the scattered photos in Compton scattering experiment? Please explain c) In the photoelecetric experiment how does the stopping voltage change with work function of metal, the intensity of the light and the frequency of the light? Please explainarrow_forward
- ➤For the following y, calculate the maximum energy that an electron could obtain due to a Compton scattering and the ratio Aλ/λ. Could any of them be easily observed? A photon of blue light λ = 480 nm A photon of energy E = 40 keVarrow_forward3. EM radiation Consider EM waves in a 3D cavity of volume V at equilibrium with temperature T. As you derived in the previous problem, the density of modes in this case is given by g(w): - V w² πT² C3 Calculate the following: (a) The heat capacity of photon gas. (b) The total number of photons, N, and the entropy per photon, i.e. S/N. (c) The pressure of photon gas. Show that the equation of state of the photon gas is: PV = ¹⁄E.arrow_forwardA) Astronomers measure the peak wavelength of a nearby star to be 410 nm. What is the star's temperature? B) How much energy does a single photon of light have at this wavelength? C) An electron bound in an unknown metal requires 1.45E-19 ] of energy under the photoelectric effect to become free of the metal. How much kinetic energy would it have if struck by the photon froft part (b)? D) What is the final speed of the elctron from part (c)?arrow_forward
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