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Chapter 38: Q8Q (page 1180)
Compton scattering. Figure 38-22 gives the Compton shift versus scattering angle for three different stationary target particles. Rank the particles according to their mass, greatest first.
The rank of the particles according to their mass is 3, 2, 1.
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Find the maximum kinetic energy of electrons ejected from a certain material if the material鈥檚 work function is 2.3 eV and the frequency of the incident radiation is .
A photon undergoes Compton scattering off a stationary free electron.
The photon scatters at from its initial direction;
its initial wavelength is . What is the electron鈥檚 kinetic energy?
A satellite in Earth orbit maintains a panel of solar cells of area perpendicular to the direction of the Sun鈥檚 light rays. The intensity of the light at the panel is . (a) At what rate does solar energy arrive at the panel? (b) At what rate are solar photons absorbed by the panel? Assume that the solar radiation is monochromatic, with a wavelength of 550 nm, and that all the solar radiation striking the panel is absorbed. (c) How long would it take for a 鈥渕ole of photons鈥� to be absorbed by the panel?
An electron and a proton have the same kinetic energy. Which has the greater de Broglie wavelength?
(a) If the work function for a certain metal is 1.8 eV, what is the stopping potential for electrons ejected from the metal when light of wavelength 400 nm shines on the metal? (b) What is the maximum speed of the ejected electrons?
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