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# pq21ans - No Either yes or no depending on the situation...

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PHYS-1200 PHYSICS II SPRING 2005 Post Quiz 21 Name___________ ANSWERS _________________ 1. In a certain photoelectric effect experiment, the energy absorbed by an individual electron is 3.10 eV. The maximum kinetic energy of the emitted electrons for the material used was found to be 1.98 eV. What is the work function for this material? hf = K max + Φ , so Φ = hf – K max = 3.10 eV – 1.98 eV Φ = 1.12 eV units 2. Does the energy absorbed by individual electrons when light strikes a surface depend on the intensity of the light? (Circle the correct choice.) Yes, linearly Yes, inversely Yes, in some manner other than linearly or inversely
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Unformatted text preview: No Either yes or no, depending on the situation Does it depend on the frequency of the light? (Circle the correct choice.) Yes, linearly Yes, inversely Yes, in some manner other than linearly or inversely No Either yes or no, depending on the situation 3. When light is absorbed by electrons, which does the light behave like, a wave or a particle? (Circle the correct choice.) Like a particle Like a wave When light is separated into its component colors by a diffraction grating, which does the light behave like, a wave or a particle? (Circle the correct choice.) Like a particle Like a wave...
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