light and lenses

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  • Created by: sharonn.0
  • Created on: 21-04-22 21:13
what is the law of reflection
angle of reflection = angle of incidence
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what is specular reflection
reflection from a smooth flat surface
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what is diffuse reflection
when light is reflected off a surface and is scattered in different direction
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what happens light ray enters a dense medium
it bends towards the normal
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what is total internal reflection
complete reflection of light ray reaching a boundary greater than a critical angle
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what are conditions of total internal reflection angle
- angle of incidence is greaten than critical angle
- the incident material is denser than the second material
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what is the converging lens
convex lens
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what does the focal length depend on
how curved the lens are
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what does a more curved lens mean
shorter focal length
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what is the diverging lens
concave lens
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what is a real image
An image that is formed when the light rays from an object converge and meet each other and can be projected onto a screen
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what are real images always
inverted
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what is virtual image
An image that is formed when the light rays from an object do not meet but appear to meet behind the lens and cannot be projected onto a screen
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what are virtual image always
upright
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what lens are virtual image
concave
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what lens are real image
convez
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Other cards in this set

Card 2

Front

what is specular reflection

Back

reflection from a smooth flat surface

Card 3

Front

what is diffuse reflection

Back

Preview of the front of card 3

Card 4

Front

what happens light ray enters a dense medium

Back

Preview of the front of card 4

Card 5

Front

what is total internal reflection

Back

Preview of the front of card 5
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