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Chapter 39: Wave Functions and Uncertainty

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Pages: 1118 - 1140

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72 Questions for Chapter 39: Wave Functions and Uncertainty

  1. Physicists use laser beams to create an atom trap in which atoms are confined within a spherical region of space with a diameter of about 1mm. The scientists have been able to cool the atoms in an atom trap to a temperature of approximately 1nK, which is extremely close to absolute zero, but it would be interesting to know if this temperature is close to any limit set by quantum physics. We can explore this issue with a onedimensional model of a sodium atom in a 1.0-mm-long box.

    Found on Page 1118
  2. FIGURE Q 39.1 shows the probability density for photons to be detected on the x-axis.

    Found on Page 1136
  3. FIGURE Q39.1 shows the probability density for photons to be detected on thex

    Found on Page 1136
  4. What are the units ofψ(x) ? Explain.

    Found on Page 1136
  5. In an interference experiment with electrons, you find the most intense fringe is at x = 7.0 cm. There are slightly weaker fringes at x= 6.0 and 8.0 cm, still weaker fringes at x = 4.0 and 10.0 cm, and two very weak fringes at x= 1.0 and 13.0 cm. No electrons are detected at x <0 cm or x> 14 cm.

    Found on Page 1136
  6. The probability density for an electron that has passed through an experimental apparatus. If 1.0×106electrons are used, what is the expected number that will land in alocalid="1649312933417" 0.010mmwide strip atlocalid="1649312941736" (a)x=0.000mmand localid="1649312949893" (b)2.000m

    Found on Page 1137
  7. shows the probability density for an electron that has passed through an experimental apparatus. What is the probability that the electron will land in a 0.010-mm-widestripatax=0.000mm,bx=0.500mm,cx=1.000mm,anddx=2.000mm?xmm-3-2-101230.50px=0cx02mm-1

    Found on Page 1137
  8. 3 shows the probability density for an electron that has passed through an experimental apparatus. What is the probability that the electron will land in a 0.010-mm-wide strip at (a) x = 0.000 mm, (b) x = 0.500 mm, (c) x = 1.000 mm, and (d) x = 2

    Found on Page 1137
  9. FIGURE EX39.13 shows the probability density for an electron that has passed through an experimental apparatus. What is the probability that the electron will land in a 0.010−mm-wide strip at (a) x=0.000mm, (b)x=0.500mm, (c) x=1.000mm, and (d) x=2.000mm

    Found on Page 1137
  10. akjsbdl

    Found on Page 1137

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