In 1842, Austrian physicist Christian Doppler discovered that frequency of wavelengths tends to change with the movement of wave source in relation to an observer. If that sounds too complex, in convenient terms you can ask what is the Doppler Effect simple explanation? Doppler Effect is the incr...
In the context of the relativistic Doppler effect [DE] and the Lorentz-Fitzgerald contraction [LF], we investigate the consequences of two abstract axioms [R] and [M] expressed in terms of an operation generalizing the addition of velocities and a function. The latter can represent either the...
An analytical approximation of the Doppler broadening function (,x) is proposed. This approximation is based on the solution of the differential equation for (,x) using the methods of Frobenius and parameters variation. The analytical form derived for (,x) in terms of elementary functions is ver...
Huygens' Principle (1678) implies that every point on a wave front serves as a source of secondary wavelets, and the new wave front is the tangential surface to all the secondary wavelets. But two problems arise: portions of wavelets that exist outside o
This unique property enables detailed studies of long-term variations in the Sun. One significant problem when looking for such changes is determining what component of any variation is due to deterioration of the instrument and what is due to the Sun itself. One of the key parameters that ...
Derivation of Continuity Equation is given here in a detailed & easy to understand way. Continuity equation is defined as the product of cross sectional area of the pipe and the velocity of the fluid at any point in the pipe must be constant.
Magnetic flux is number of magnetic lines passing through closed surface. Learn more about its units, properties, unit of magnetic flux density, and formulas at BYJU'S.
On the basis of Galilean invariance and the Doppler formula, combined with an observational condition, it is shown that the constancy of the velocity of lightin vacuocan be derived, together with time‐dilatation and Lorentz contraction. It is not necessary to take the constancy as a postulate....
Heat Engine is a device that converts heat to work. The efficiency of a heat engine is the maximum for a reversible engine like Carnot heat engine. Learn more at BYJU'S
electricity laws of physics ohm's law newton's laws of motion archimedes principle doppler effect kirchhoff's law law of reflection ampere's law faraday's law bernoulli's principle lenz's law si unit list unit of pressure viscosity unit unit of power density units unit of energy unit of for...