M Dash Foundation: C Cube Learning

Tag: optical path

  • Interference of two types

    Interference of two types

    Interference by wave-front and amplitude splitting. Optics Series Lecture, Lecture – XIV, XV, XVI. Topics covered in this lecture A. Color of thin films B. Newton’s rings C. Lloyd’s mirror and D. Phase changes during reflection We have previously discussed what is interference and what are wave-front splitting and amplitude splitting interference. We have also discussed…

  • 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…

  • Optical Path and Fermat’s Principle.

    Optical Path and Fermat’s Principle.

    Mirror and Fermat’s principle: We can see ourselves in the mirror and take our mirror reflected selfie as a consequence of Fermat’s Principle, the topic of discussion of the blog. … Snell’s Law governs refraction which is adjustment of optical paths in in-homogeneous media because light can no more travel at its speed in free-space.…