2.1-2.5: light behaves in predictable ways
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12 Terms
Transparent
All light passes through
Translucent
Some light passes through
Luminous
Sources of light
Non-luminous
Not a source of light
What is the law of reflection
The incident angle is equal to the reflected angle
What can change refraction?
The more dense the material is, the more it bends. When light passes from one medium to another it changes speed
Smooth reflected rays are paralleled and same
Regular reflection
Rough reflected rays are scattered (different)
Diffused reflection
Found in refracting telescopes
Concave mirror
Found in car mirrors and security mirrors
Convex mirror
Curves outward and is thicker in the middle. Found in projectors
convex lenses
Thinner in the centre and at the edges. Light rays are refracted away
Concave lenses
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