PhysicsLAB Worksheet
Refraction and Critical Angles

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Determine the unknown angle in the diagram. 

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Explain why ray #1 refracts twice, while ray #2 does not refract at either surface.
 

 
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Which of the following diagrams represents a possible result of the above incident ray?
 
 
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A ray of light normal to the short face of a 37-53-90 prism is shown. A drop of liquid is placed on the hypotenuse of the prism. The index of refraction of the prism is 1.52.
 
 
If the beam is internally reflected, what is the index of the liquid?
 
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Referencing the following image, the angle labeled q3 is the critical angle of the medium whose index of refraction is 1.25 .
 
 
How will the reflected ray shown above behave when it strikes the upcoming vertical interface?



 
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The fisherman shown in the picture above will see the fish:

a) closer to the boat then it actually is
b) further from the boat then it actually is
c) closer to the surface then it actually is
d) further below the surface then it actually is
 
Which combination is correct?
 
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Which of the following statements is NOT true regarding the dispersion of a ray of white, polychromatic, light through a glass prism surrounded by air?
 
 
Dispersion, or the breaking up of polychromatic light into its component colors, results from the fact that every wavelength (or frequency) of light has its own unique



 



 
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