Category: optics
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How rainbows are created
How Rainbows are created. Optics lecture series – IV “Primary and Secondary rainbows”, a lecture in Optics. This lecture was delivered on February 02, 2017. Sunlight is white in color. Do you know Newton would have greatly disliked this statement, do you know why? “Color is not the property of light” but a property of an…
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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…
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Primary aberration, a lecture in optics.
Lecture-II; delivered on 27-1-2017 In our Lecture-I we discussed the phenomena of aberrations that arise because of a discrepancy of a first order theory and the 3rd order theory as depicted by the Maclaurin series; where we saw that first order theory represents the so called paraxial optical systems. Please have a look of the linked…
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Aberrations, a lecture in optics.
Optics series Lecture — I Optical Aberrations delivered on 24 – 1 – 2017 — all optics series lectures can be accessed here. This lecture has been delivered in one of the honors class that I am teaching this semester. You will do really well to read the linked article on Optical path and Fermat’s principle…
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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.…
M Dash Foundation: C Cube Learning 