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Vocabulary Word

Word: incidence

Definition: rate of occurrence; particular occurrence; Ex. high incidence of infant mortality


Sentences Containing 'incidence'

Observation and experiment have taught us that light is always reflected in such a way that the angle of reflection equals the angle of incidence.
The law of reflection always holds, however, no matter what the reflecting surface is, the angle of reflection always equals the angle of incidence.
When light passes from air into water or glass, the refracted ray is bent toward the perpendicular, so that the angle of refraction is smaller than the angle of incidence.
When a ray of light passes from water or glass into air, the refracted ray is bent away from the perpendicular so that the angle of refraction is greater than the angle of incidence.
And between points 5 and 6 this light will be reflected by the cone to the eye in its greatest intensity, since at these points the angles of incidence equal the angles of reflection.

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