Extra Questions for
Module 3 -- Absorption, Reflection, Refraction;
Angles of Incidence, Refraction and Deviation.
  1. DEFINE and give an example, where appropriate
    1. absorption
    2. deviation [angle of]
    3. diffuse reflection
    4. incidence [angle of]
    5. reflection
    6. refraction
    7. refraction [angle of]
    8. specular reflection

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  2. label the diagram:

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  3. OK, once again:
    1. Why is my red pencil red?
    2. Why is the blacktop black?
    3. If you shine a light beam through your green sunglass lenses, why will the light coming out be green?
    Write your explanations out in terms of reflection, refraction, absorption.
       
  4. When a ray of light travels from air into water, which is denser than air, what happens to the ray of light if
    1. the ray is perpendicular to the surface
    2. the ray is not perpendicular to the surface

     
  5. When a ray of light travels from water into air, which is rarer than water, what happens to the ray of light if
    1. the ray is perpendicular to the surface
    2. the ray is not perpendicular to the surface

     
  6. What does critical angle mean?

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  7. If a ray travels from air to water with an angle of incidence of 15 degrees and an angle of refraction of 11 degrees, how much was it deviated?  Draw what happened.

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  8. If the ray leaves the water traveling into air with an angle of incidence of 20 degrees and it is deviated by -7 degrees, what was the angle of refraction?  Draw what happened.

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Some of the answers are here.  As before, you get to look up the definitions.

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