Exam 27: Early Quantum Physics and the Photon

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A Compton scattering experiment is performed in which the scattered photons have a maximum energy of 17.2 keV.What was the incident energy of the photons used in this experiment?

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B

Two lasers emit equal numbers of photons per second.If the first laser emits red light and the second emits blue light,the power radiated by the first is

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C

The Compton shift equation for the wavelength shift is derived from the law(s)of

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E

In the Compton effect,a photon of wavelength λ\lambda and frequency f is scattered from an electron.Initially,at rest

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An x-ray photon with wavelength 15.0 pm is scattered at 84.0 ∘^{\circ} by an electron.What is the wavelength of the scattered photon?

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Monochromatic light shines on a surface with work function 1.80 eV. The maximum energy of the emitted photoelectrons is 0.620 eV. What is the wavelength of the monochromatic light?

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A 100 keV photon undergoes Compton scattering.What is the greatest amount of kinetic energy that can be given to the electron in this process?

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The potential energy of an electron in the ground state of the hydrogen atom is _________.

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X-rays are produced using a potential difference of V.The spectrum of wavelengths is found to contain

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How many emission lines are possible for atomic hydrogen gas with atoms excited to the n = 4 state?

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For the ion He+,what is the energy of the ground state?

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If pair production of muon-antimuon pair can occur for photons of 5.85 fm or less,what is the mass of a muon?

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What is the kinetic energy of an electron in the ground state of hydrogen?

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Dark lines that appear in the spectra observed in stellar atmospheres indicate the fact that

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X-rays of wavelength 0.240 nm are scattered from a free electron at rest and the resulting scattered photons have wavelength 0.244 nm.Through what angle did these photons scatter from the initial direction?

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A photon that is emitted during a transition in hydrogen from the n = 27 state to the n = 2 state is in which of the following series?

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Electrons are accelerated through a potential difference of 90.0 kV and directed at a tungsten target to produce x-rays.What is the shortest wavelength of the x-rays produced?

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Ultraviolet light is shone on a piece of metal that has a known work function,and electrons are observed being produced through the interaction of the light with the metal.The lamp that produces the light is now replaced with a lamp of the same intensity,but which produces photons having a longer wavelength.What difference is observed in the number of electrons produced per unit time?

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Sodium has a work function of 2.46 eV.Of the following wavelengths,which is the one of the longest wavelength that could cause photoelectrons to be released from the sodium?

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In a photoelectric effect experiment,light of a single wavelength is incident on the metal surface.As the intensity of the incident light is increased

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