Name: 
 

Refraction


Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
Part of a pencil that is placed in a glass of water appears bent in relation to the part of the pencil that extends out of the water. What is this phenomenon called?
a.
interference
c.
diffraction
b.
refraction
d.
reflection
 

 2. 
Refraction is the bending of a wave disturbance as it passes at an angle from one ____ into another.
a.
glass
c.
area
b.
medium
d.
boundary
 

 3. 
The ____ of light can change when light is refracted because the medium changes.
a.
frequency
c.
wavelength
b.
medium
d.
transparency
 

 4. 
The ____ of light can change when light is refracted because the velocity changes.
a.
frequency
c.
wavelength
b.
medium
d.
transparency
 

 5. 
When light passes at an angle to the normal from one material into another material in which its speed is higher,
a.
it is bent toward the normal to the surface.
b.
it always lies along the normal to the surface.
c.
it is unaffected.
d.
it is bent away from the normal to the surface.
 

 6. 
When light passes at an angle to the normal from one material into another material in which its speed is lower,
a.
it is bent toward the normal to the surface.
b.
it always lies along the normal to the surface.
c.
it is unaffected.
d.
it is bent away from the normal to the surface.
 

 7. 
When a light ray moves from air into glass, which has a higher index of refraction, its path is
a.
bent toward the normal.
c.
parallel to the normal.
b.
bent away from the normal.
d.
not bent.
 

 8. 
When a light ray passes from water (n = 1.333) into diamond (n = 2.419) at an angle of 45°, its path is
a.
bent toward the normal.
c.
parallel to the normal.
b.
bent away from the normal.
d.
not bent.
 

 9. 
When a light ray passes from zircon (n = 1.923) into fluorite (n = 1.434) at an angle of 60°, its path is
a.
bent toward the normal.
c.
parallel to the normal.
b.
bent away from the normal.
d.
not bent.
 



 
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