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Physics
Refraction and dispersion
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Preparing the optics bench…
n(650 nm) = 1
n(650 nm) = 1
Tools
Turn on the laser to see the rays
Model notes
- Ray paths use geometrical optics with polarization perpendicular to the plane of incidence. Interference and diffraction are outside this model.
- Wave motion is slowed for observation; its animation speed cannot measure the speed of light.
- The adjustable wavelength is in vacuum. Refractive index depends on wavelength; the custom value is specified at 650 nm.
- The sensor absorbs light, cutting the intercepted rays. Very weak reflected rays may be hidden; prism tracing has a recursion limit.