PHYSICAClass 12 Physics simulations · Ray Optics and Optical Instruments
Refraction and total internal reflection
Send a ray across a boundary between two optical media.
What to notice
When light goes toward a lower refractive index, sufficiently large angles produce total internal reflection.
Key relation
n₁sinθ₁ = n₂sinθ₂
Try this
Use n₁ = 1.5, n₂ = 1.0 and increase the angle.
What you can change
- Incident medium index: 1 to 2
- Second medium index: 1 to 2
- Incidence angle: 0 to 80 °
More in Ray Optics and Optical Instruments
- Real and apparent depth
- Astronomical telescope
- Compound microscope
- Image in a concave mirror
- Two thin lenses in contact
- Image through a convex lens
- Lens maker’s formula
- Images in two inclined mirrors
- Guiding light in an optical fibre
- Prism: angle of minimum deviation
- Dispersion through a prism
- Spherical mirrors: ray diagram
- Total internal reflection
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