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True or False(Help)

  1. May 16, 2010 #1
    All of these questions are true or false answers but, i am unsure if i am correct in my answers. Any help would be appreciated.

    1. The problem statement, all variables and given/known data
    1. When a wave reaches a boundary between two media and some or all of the wave bounces back into the first medium, this is known as reflection.

    2. Your eye cannot ordinarily tell the difference between an object and its virtual image.

    3. When light waves move from one medium into a medium in which they travel more slowly, the light wave is bent away from the normal.

    4. The separation of light into colors arranged according to their frequency is called diffraction.

    5. A camera forms a virtual image on film.

    6. The layer of tissue at the back of the eye is the iris.

    7. In a far-sighted eye, light focuses in front of the retina.

    8. The bending of a wave around an obstruction is called refraction.

    2. The attempt at a solution

    1. T
    2. F
    3. T
    4. F
    5. T
    6. F
    7. T
    8. T
     
  2. jcsd
  3. May 16, 2010 #2

    AEM

    User Avatar

    Several of your answers above are wrong. Why don't you check the following terms on Wikipedia:

    Refraction
    Diffraction
    Dispersion

    Finally, in an old film style camera the image is made by a chemical reaction. What is the difference between a real and a virtual image? Which one can induce a chemical reaction?
     
  4. May 16, 2010 #3
    Ok thanks for the help. Ill follow your advice and look up those terms with wiki.
     
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