Refraction Flashcards
Bending of light
Refraction
what occurs in refraction
Change of direction of the light
related to the transparency of a substance to ligh
Optical density
responsible for the image formation in our eyes and
lenses.
Refraction
the ratio of the speed of light in a
vacuum to the substance
Index of refraction
n in formula
Index of refraction
v in formula
Speed of light in substance
c = ?
Speed of light
Speed of light
3.00x10⁸ m/s
Less dense to dense;
Towards normal
denser to less dense;
Away from normal
Perpendicular to interface
Total internal refraction
Relates the indices of refraction of a 2 media and the angle from the normal usinf this equation
Snell’s law
Dutch astronomer and mathematician
Willebrord Snell
When the angle of incidence and angle of refraction is 90°
Critical angle
Phenomenon where the light will be reflected back and no bending of light
Total internal refraction
differ in their ability to refract light. Thus, there is a difference
in the type of image they form.
Spherical lense
a piece of glass or transparent material having at least one
spherical surface
Spherical lens
2 types of spherical lenses
Convex/converging, concave/diverging
Lens thicker in the middle than the edges
Convex
Lenses thinner in the middle than the edges
Concave
Converging lenses can produce:
Both virtual and real
Diverging lenses can produce
Only virtual
