Category: basic physics
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Four-vectors and conservation laws in relativity
This lecture was delivered to the final year honors class of 3 year science degree students on 21 November 2017 as part of the Classical Dynamics paper. In this lecture we will discuss some of the important tools of relativistic mechanics. We will discuss the idea of proper-time, 4-velocity, 4-acceleration, 4-momentum, 4-force and related conservation…
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Relativistic Doppler effect
Relativistic Doppler effect. There is an apparent shift in the observed frequency of any electromagnetic wave (light) when there is any relative motion between the source of light and the observer. This can be easily determined by using the 4-vector formulation of theory of relativity. Lets discuss the details of this phenomena under two situations.…
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Introduction to special theory of relativity.
Special Theory of Relativity: Galilean Transformations,. Newtonian Relativity. This was a lecture delivered to physics-elective class of a 3 year non-physics degree students on 10th April 2017. This is also a good exposition to honors students and anyone at an introductory level of the special theory of relativity, with requisite mathematical background. Let us consider…
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Falling Masses, the Big Picture.
This lecture note will make your life ten-fold easier in the scope of the problems it addresses. Consider it a talisman. I discovered this a couple of weeks ago when I was solving these problems for my own conceptual understanding. So I waited till I can completely enunciate the big picture. When I confirmed that…
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Wrong question in GATE 2018 physics?
I think the above question asked in GATE 2018 (physics) is wrong. Any vector has two components. The component perpendicular to the parity axis has even parity and the parallel component to the axis has odd parity. The opposite is true for axial vectors. E, A vectors. B, L axial vectors. The correct answer per…
M Dash Foundation: C Cube Learning 