Karteikarten
Light and Geometric Optics
Karten in diesem Stapel (20)
- 1Double slit experiment equationdsinθ = mλ
d = distance between the slits
m = band position on the screen
λ = source - 2DiffractionLight spreads out after passing through the slit, instead of going in a straight path.
- 3Single slit experiment equationasinθ = mλ
a = width of slit - 4Thin filmsProvide a means for interference to occur. Light reflecting off the outer and inner boundary of a thin film interfere with each other.
- 5Unpolarized lightLight with electric field oscilating in many planes.
- 6Polarized lightLight with electric field oscilating in a single plane.
- 7ReflectionAt a certain polarizing angle, all reflected light is polarized.
- 8ScatteringAir molecules scatter light, which becomes polarized.
- 9Doppler effect (moving light source or observer)Observed in astronomy, when stars appear redder/bluer than they really are because they are moving away/toward us.
Use the speed of light c.
Red shift: source moving away from observer.
For blue shift: source moving toward observer. - 10Red shift- Frequency decreases
- Occurs when source and observer is moving away from each other. - 11Blue shift- Frequency increases
- Occurs when source and observer is moving toward each other. - 12Visible light~380nm (violet)
to
~740nm (red) - 13LaserLight
Amplification by
Stimulated
Emission of
Radiation. - 14Reflection from plane surfaceangle of incidence = angle of reflection
- Mirrors completely reflect light.
- Going from one medium to another results in partial reflection of light. - 15RefractionThe change in direction of light due to a change in its transmission medium.
- 16Index of Refractionn = c/v
c= speed of light in vacuum
v = speed of light in medium - 17Snell's Law (Law of refraction)n₁sinθ₁ = n₂sinθ₂
if n₂>n₁
then θ₂<θ₁
(light will bend towards the normal) - 18Dispersion- Change of index of refraction with wavelength.
- Blue light refracts more than red light in a prism.
- White light passes through a prism and gets split into colors of the rainbow due to dispersion. - 19Total internal reflectionWhen θ (incidence) > θ (crit).
From a medium of high index of refraction to a medium of low index of refraction. - 20Critical angle for total internal reflectionsin θ(crit) = n₂/n₁
Informationen
- Beschreibung
- MCAT - Physics Karteikarten am Light and Geometric Optics, erstellt von jessicalazar am 25/10/2014.
- Erstellt von
- jessicalazar · Okt 2014
- Aktualisiert
- 19 Feb 2016
- Aufrufe
- 9
- Bewertung