M Dash Foundation: C Cube Learning

Tag: refraction

  • Matrix formulation in geometrical optics

    Matrix formulation in geometrical optics

    Topics covered in this lecture Ray tracing a. Translation matrix b. Refraction matrix c. System matrix  In this lecture, we will discuss about one of the most interesting and powerful methods in Geometrical Optics. As we have discussed here (https://mdashf.org/2017/02/25/fermats-principle-a-lecture-in-optics/), geometrical optics is that segment of optics in which we are limited to a situation…

  • Fermat’s Principle, a lecture in optics

    Fermat’s Principle, a lecture in optics

    Optics series lecture, Lecture-III “Geometrical Optics and Fermat’s Principle”. Geometric Optics: When the size of objects that a wave of light interacts with are large compared to the wavelength of light λ, λ can be neglected for practical purposes and the light waves behave like rays of light. Rays of light are geometric line segments…

  • Inherent ability = difficulty * accomplishment.

    All of Physics is this “Inherent ability = difficulty * accomplishment”. Thats just intuitive but can easily be seen to correspond mathematically with the Principle of least action. First the edifice: whats the problem? The problem is given you move in straight line when every direction is same around you, which direction will you chose?…

  • Equivalence from simple notions of Geometry ? Yes.

    Now it may also be related that light bends in a denser media compared to a rarer media because an additional rotational force is working. In other words, the definition of straight line has to change in the medium, that is of different density, because path of light is changing. Light is the guy who…