Optics - Production Of Light Quiz

8 Questions | Total Attempts: 256

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Optics Quizzes & Trivia


Questions and Answers
  • 1. 
    Any object, as it gets hotter and hotter, will eventually produce __________ of varying colors.
  • 2. 
    The process of producing light as a result of high temperature is called _______________.
  • 3. 
    A _______is a light producing electronic device that allows an electric current to flow in only one direction.  Now used in Christmas lights illuminated signs, and traffic lights.
  • 4. 
    A _____________ light tube is filled with very low-pressure mercury vapour. The inner surface of the tube is also coated with a fluorescent material. 
  • 5. 
    Light from an electric discharge, such as lightning is produced by an electric current passing through a _______. 
  • 6. 
    Fluorescence occurs when an object absorbs _______________ light and immediately releases the energy as visible light.
  • 7. 
    ______________________ is the production of light as a direct by-product of a chemical reaction. Light sticks operate by causing two chemicals to mix.
  • 8. 
    When chemiluminescence occurs in living organisms, scientists call it ____________________.