Exam 27: Early Quantum Physics and the Photon
Exam 1: Introduction70 Questions
Exam 2: Force93 Questions
Exam 3: Acceleration and Newtons Second Law of Motion79 Questions
Exam 4: Motion With Constant Acceleration77 Questions
Exam 5: Circular Motion87 Questions
Exam 6: Conservation of Energy81 Questions
Exam 7: Linear Momentum89 Questions
Exam 8: Torque and Angular Momentum 91 Questions
Exam 9: Fluids87 Questions
Exam 10: Elasticity and Oscillations93 Questions
Exam 11: Waves80 Questions
Exam 12: Sound90 Questions
Exam 13: Temperature and the Ideal Gas86 Questions
Exam 14: Heat87 Questions
Exam 15: Thermodynamics81 Questions
Exam 16: Electric Forces and Fields86 Questions
Exam 17: Electric Potential80 Questions
Exam 18: Electric Current and Circuits70 Questions
Exam 19: Magnetic Forces and Fields72 Questions
Exam 20: Electromagnetic Induction74 Questions
Exam 21: Alternating Current73 Questions
Exam 22: Electromagnetic Waves73 Questions
Exam 23: Reflection and Refraction of Light82 Questions
Exam 24: Optical Instruments68 Questions
Exam 25: Interference and Diffraction71 Questions
Exam 26: Relativity70 Questions
Exam 27: Early Quantum Physics and the Photon76 Questions
Exam 28: Quantum Physics73 Questions
Exam 29: Nuclear Physics78 Questions
Exam 30: Particle Physics58 Questions
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The orbits of the electron in the Bohr model of the hydrogen atom are those in which the electron's _______________ is quantized in integral multiples of h/2 .
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What is the highest energy of a photon in the Balmer series?
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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 1014 Hz,what is the work function of the surface?
(Multiple Choice)
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The number of electrons per second ejected from a metal in the photoelectric effect
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An x-ray photon of energy 3.20 10-15 J has what wavelength?
(Multiple Choice)
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In the Compton effect a photon of wavelength and frequency f is scattered from and electron,initially at rest.In this process
(Multiple Choice)
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In a Compton scattering experiment,the scattered photon has a wavelength of 6.55 pm.If the scattering angle is 50 ,what is the energy of the incident photon?
(Multiple Choice)
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An electron passing close to a target nucleus slows and radiates away some of its energy.What is the process called?
(Multiple Choice)
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The work function of a surface is 6.53 10-19 J.What is this quantity in eV?
(Multiple Choice)
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Photons of energy 4.20 eV bombard a surface,which emits photoelectrons with kinetic energies for 0 to 1.80 eV. What is the threshold frequency for this surface?
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As a result of experiments involving alpha particle scattering,__________ proposed the nuclear model of the atom.
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What is the maximum wavelength photon that can produce a pair of tau particles (rest mass 1.777 GeV/c2) by pair production?
(Multiple Choice)
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The maximum shift in wavelength in Compton scattering is what multiple of the Compton wavelength (h/miss)?
(Multiple Choice)
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What is the wavelength of a photon emitted when an electron in hydrogen goes from the n = 4 state to the n = 1 state?
(Multiple Choice)
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Photons of red light cause a surface to emit photoelectrons with maximum kinetic energy K(red).If photons of blue light of the same intensity are now used in the experiment,which of the following statements is true about the photoelectrons emitted (if any are emitted)?
(Multiple Choice)
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Silver has a work function of 4.73 eV. Photons of threshold frequency would be described as which of the following?
(Multiple Choice)
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If a hydrogen atom in the ground state absorbs a 20.0 eV photon,what kinetic energy of the electron results?
(Multiple Choice)
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The spectra,such as Ångström found for low-pressure gas in a discharge tube,are of what type?
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Electrons are accelerated through a potential difference V and then strike a dense target.In the x-rays that are produced
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