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9 Cards in this Set
- Front
- Back
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total internal reflection |
light reflects of the inside wall of a dancer medium higher n rather than passing through the wall into a less dense medium lower n |
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critical angle |
add a certain angle that refracted light ray follows a path exactly along the boundary between two mediums feta R equals 90 |
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when does it occur |
One light travels more slowly in the first medium then in the second higher density to lower density to angle of incidence must exceed the critical angle so Ray reflects back into the same medium |
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fibre optics |
Glass tube that is transparent and two raise of light bats are around in it and it is very thin |
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optical fiber |
A thin transparent glass tube that transmits light around corners until it reaches the end |
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inside the tube |
The light reflects off the walls of the glassfiber along it’s been around corners total internal reflection |
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extra fiber |
fibre objects as small as human hair and are used to transmit Internet and telephone communications |
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The triangular prism |
prisons reflect almost 100% of light internally
mirror is to lose some light due to absorption and the surface tutorious overtime
most optical devices use prisms rather than mirrors |
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diamonds |
The sparkle is caused by the cut of the diamond surface combine with a tie annex of a fraction and equals 2.42 resulting in TIR
in diamonds light bounces around several times before exiting due to its small critical angle |
