lect 7 - Question 3-1 If you apply a high voltage across...

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If you apply a high voltage across electrodes in a chamber of hydrogen, the type of spectrum you will see in a spectroscope looking at the gas is: A an emission spectrum B an absorption spectrum C a continuous spectrum D all of the above spectra E none of the above spectra Question 3-1
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Question 3-2 Rutherford shot alpha particles at a thin foil and was able to show that A Gold foil has no neutrons B Gold foil has no electrons C The atom is generally very empty except for a dense area where protons and neutrons are concentrated. D The atom is generally very uniform and when you shoot an alpha particle at it, it is very likely to hit a proton an be reflected back.
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Question 3-3 The electron permitted orbits and their energies are shown for a fictitious atom. If the electron is in the ground state (lowest possible energy), which of the following photon energies could be absorbed? A. 1 B. 2 C. 4 D. 6 E. 7
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Two objects are moving closer together. Each will see the other's light A red-shifted B better than if moving apart C richer in heavier elements D blue-shifted E shifted into the microwave region of the spectrum Question 3-4
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A police car siren has a frequency of 500 Hz. As the police car recedes from your house, you would hear a frequency. A higher than 500 Hz. B exactly 500 Hz. C lower than 500 Hz. Question 3-5
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The fraction of the Sun that is comprised of hydrogen and helium is roughly A 98% B 90% C 50% D 10% E 2% Question 3-6
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Energy generation in the Sun results from A fission of uranium B fission of hydrogen C gravitational contraction D the Sun isn't generating energy; it's just cooling E fusion of hydrogen Question 3-7
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What is nuclear fusion? A a heavy nucleus splitting apart to form two lighter nuclei B the attachment of electrons to nuclei to form atoms C two nuclei sticking together to form a new, heavier nucleus D a nucleus changing to become the nucleus of a different element by emitting an electron and a neutrino Question 3-8
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Energy is transported from the center of the Sun to the surface A by radiation in the central thermonuclear core and convection through the rest of the interior. B mostly by convection but with radiation in the outer
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This note was uploaded on 02/06/2011 for the course ASTR 113 taught by Professor Geller during the Spring '08 term at George Mason.

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lect 7 - Question 3-1 If you apply a high voltage across...

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