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Optical Systems

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Question
Answer
Transparent   light passes through freely  
translucent   light passes through and scatteres (some is absorbed or reflected)  
opaque   no light can pass through, all light is absorbed or reflected  
shadows   bigger if object is closer to light sorce, smaller if object is farther from light sorce  
normal   line drawn at right angle to a soldid barrier  
incident ray   incoming light ray  
reflected ray   light ray that bounces off  
angle of incidence   angle between incident ray and the normal, labelled with an i  
angle of reflection   angle bvetween reflected ray and the normal, labelled with an r  
law of reflection   the angle of reflection equals the angle of incidence  
refraction   bending of a wave when it passes from one medium to another  
light passing through air to water (refraction)bends ___________the normal   slows down and bends toward  
light passing through water to air (refraction) bends ___________ the normal   speeds up and bends away from  
angle of refraction   angle between the refracted ray and the normal, labelled with an R  
when you look at an object under water, it appears to be _______ where it really is   above  
light can also be refracted in air, resulting in _________   mirages  


   


 

 

 

 

 

 
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