Engineering Physics 11 min read
Refraction by Lenses
We have already learned that a lens is a carefully ground or molded piece of transparent material that refracts light rays in such a…
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Engineering Physics 5 min read
Image Formation by Lenses
The Anatomy of a Lens If a piece of glass or other transparent material takes on the appropriate shape, it…
Engineering Physics 6 min read
Mirages
Most of our discussion of refraction in this unit has pertained to the refraction of light at a distinct boundary. As light…
Engineering Physics 6 min read
Rainbow Formation
One of nature’s most splendid masterpieces is the rainbow. A rainbow is an excellent demonstration of the dispersion of light and one…
Engineering Physics 6 min read
Interesting Refraction Phenomena
Dispersion of Light by Prisms In the Light and Color unit of The Physics Classroom Tutorial, the visible light spectrum was introduced and discussed.…
Engineering Physics 7 min read
The Critical Angle
In the previous part of Lesson 3, the phenomenon of total internal reflection was introduced. Total internal reflection (TIR) is the…
Engineering Physics 8 min read
Total Internal Reflection
A common Physics lab is to sight through the long side of an isosceles triangle at a pin or other…
Engineering Physics 11 min read
Ray Tracing and Problem-Solving
In a previous part of Lesson 2, we learned about a mathematical equation relating the two angles (angles of incidence and…
Engineering Physics 7 min read
Snell’s Law
Refraction is the bending of the path of a light wave as it passes across the boundary separating two media. Refraction…
Engineering Physics 5 min read
The Mathematics of Refraction
The Angle of Refraction Refraction is the bending of the path of a light wave as it passes across the boundary…