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7. (2 points) According to the de Broglie relation, the wavelngth ofmatter\" wav

ID: 1579985 • Letter: 7

Question

7. (2 points) According to the de Broglie relation, the wavelngth ofmatter" wave In oversely to , the Planck's constant (b) the mass of the particle. (e) the momentum of the particle (d) the frequency of the wave. the less we know about its ng to the uncertainty principle, the more we know about s particle's momentums (a) kinetie energy 6 mass. (c) speed. (d) location. (e) none of these. 9. (2 material have points) In the photoelectrie effect, electrons ejected from bound states in the photosenaitive (a) less kinetic energy than the absorbed photon's energy. (b) more kinetic energy than the absorbed photon's energy @ kinetic energy equal to the absorbed photon's energy 10. (2 points) The photon description of light is necessary to explain (a) polarization. (b) diffraction of light. photoelectric effect. (d) electron diffraction. (e) interference of light. 11. (2 points) Compared to the wavelengths of visible light, the wavelengths of matter waves are relatively @ large. (b) small. 12. (2 points) Which one of the following quantities is the same for all photons in vacuum? (a) speed (b) frequency (c) kinetic energy (d) wavelength 13. (2 points) X-rays are used to examine the crystal structure of sodium chloride (a) True. (b) False. 14. (2 points) The charge of X-rays is (a) positive negative (c) zero

Explanation / Answer

7) The momentum of the particle

8) Location

9) Less K.E. than the absorbed photon energy

10) Photoelectric Effect

11) Small

12) Frequency

13) True

14) Zero

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