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Unformatted text preview: e-digit answer in the numerical-response section on the answer sheet.) 15
15 Use the following information to answer the next two questions.
The different colours seen in exploding fireworks are produced using different
Yellow-Orange Given the information above, the element that emits the lowest energy photon of
visible light is
D. 23. Predominant
sodium The colours are emitted by electrons that are
D. undergoing transitions to higher energy levels
undergoing transitions to lower energy levels
oscillating between energy levels
emitted by the nucleus 16
16 24. The energy gained by a proton that moves through a potential difference
of 1.0 V is
D. 1.0 J
6.3 × 1018 J
1.6 × 10–19 eV Numerical Response
11. A metal has a work function of 2.91 × 10–19 J. Light with a frequency of
8.26 × 1014 Hz is incident on the metal. The stopping voltage is __________V....
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- Fall '09