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Homework Help: Short answer questions on Solid state physics

  1. Jan 27, 2009 #1
    1. Platinum is silver and shiny. Why?
    2. Aluminum oxide can be either transparent, red or blue. How?
    3. Quartz is transparent. Why?
  2. jcsd
  3. Jan 27, 2009 #2


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    Staff: Mentor

    Welcome to the PF. You must show your own attempt at answering these homework/coursework questions before we can provide any tutorial assistance -- that's in the PF Rules link at the top of the page.

    So what are your answers?
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