incidence
- noun
- /ˈɪnsɪdəns/
- Specialized
- However, their bandwidth per angle of incidence is limited to a relatively narrow range.
- incidence angle
This way, angle of incidence equals angle of reflection.
- This way, angle of incidence equals angle of reflection.
Examples
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It's capable of angles of incidence that we couldn't otherwise see.
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Imported malaria in Canada has not been examined recently in the context of increased international mobility, which may influence the incidence of imported and autochthonous cases.
Academic text (2012) -
The angle of incidence is equal to the speed...
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This way, angle of incidence equals angle of reflection.
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Even at grazing incidence, optical surfaces absorb rather than reflect high-energy photons.
Academic text (2003) -
In principle, if a particle in the circular billiard were launched with precisely the right angle of incidence to the boundary, it would execute a closed periodic orbit.
Academic text (2005) -
The irradiation technique (active or sham) had the laser probe positioned to promote a perpendicular incidence of LLLT.
Academic text (2015) -
The angle at which the ray hits the mirror is called the angle of incidence.
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Because of the sun's low angle of incidence, very little direct sunlight hits the ground.
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Even at grazing incidence, optical surfaces absorb rather than reflect high-energy photons.
Compounds
- Specialized
The angle between a light ray and a line at a right angle to the surface where they meet
- Specialized
The angle between incoming light and a line at a right angle to the surface
Surface Forms
Morphology
Etymology
The word incidence comes from an old Latin word incidere, which meant 'to fall on' and is made of in- 'on' and cadere 'to fall'. In physics the idea is very literal: incidence is where a beam of light 'falls on' a surface and the angle it makes, which is why we talk about the 'angle of incidence'.