Refraction

Beschreibung

Leaving Cert Study (Refraction) Karteikarten am Refraction, erstellt von LearnRememberi am 24/01/2015.
LearnRememberi
Karteikarten von LearnRememberi, aktualisiert more than 1 year ago
LearnRememberi
Erstellt von LearnRememberi vor fast 10 Jahre
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Zusammenfassung der Ressource

Frage Antworten
Refraction Definition Refraction is the bending of light as it passes from one medium to another medium of different density.
Law 1 of Refraction The incident ray, normal and refracted ray are all in the same plane.
Law 2 of Refraction Snell's Law
Refractive index of a medium The refractive index (n) of a medium is the ration of sine i to sine r when a light travels from a vacuum to that medium.
EXPERIMENT: Verification of Snell's Law of Refraction Shine a light box through glass prism. Note angle of refraction/ incidence. Graph it. sin i on y-axis sin r on x-axis All values of n are equal
aNw Refracted index from air to water
Formulas for refractive index or
Real and apparent depth n= real depth ------------- apparent depth
EXPERIMENT: Refractive Index of a Liquid Pin in water and out of cork, mirror No parallax Depth of beaker= Real depth y- axis real depth x- axis apparent depth
Critical Angle Only happens if we ave light going from dense to less dense
Total Internal Reflection The optical phenomenon is when light is reflected back from a boundary between 2 media: it occurs when the light travels towards the less dense medium from the denser one, striking the boundary with an angle of i greater than the critical angle for those two media
EXPERIMENT: Measurement of focal length of converging lens Finding image Measure f, u and v Use lens formula
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