# The momentum of a photon is given by the formula : Consider the above diagram, it illustrates the “Compton Effect”. Arthur Compton discovered it and was awarded the Nobel Prize in Physics in 1929. The formula is : p = h/λ. where, p = momentum of the photon in Kg.m/s. h = Planck’s constant which has the value of 6.63 × 10 − 34 J ⋅ s

The answer is then definitely "no": the photon is a massless particle. According to theory it has energy and momentum but no mass, and this is confirmed by

(c) What is the kinetic energy of the electron, and how does it compare with that of the photon? positive photon energy when the field is quantized. Minkowski’s form does not; it sometimes leads to negative-energy photons. (i.e., in the case of Čerenkov radiation) These arguments again only deal with the “field” portion of the tensor and not the total energy-momentum tensor. (Artifically dividing the tensor into “field” and In this video, our topic is photon momentum.

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h = Planck’s constant which has the value of 6.63 × 10 − 34 J ⋅ s Momentum of Photon A photon, the quantum of electromagnetic radiation, is an elementary particle, which is the force carrier of the electromagnetic force. The momentum of a photon will depend on the frequency of that photon. As shown by other responders to your question, the momentum is related to Planck’s Constant, signified by the letter “h” and the frequency (and inversely proportional to the wavelength). The higher the frequency, the greater the momentum. 183 views Since p points in the direction of the photon's propagation, the magnitude of the momentum is.

The quantum of EM radiation we call a photon has properties analogous to those of particles we can see, such as grains of sand. A photon interacts as a unit in collisions or when absorbed, rather than as an extensive wave.

## How to derive the momentum of a photonBegin by equating the energy-momentum relation and energy of a photon equations which are E²=(mc^2)²+(pc)² and E=hf res

5.0k SHARES. To keep reading this solution for FREE, Download our App. Join the 2 Crores+ The corresponding relativistic particle theory of light indicates that the potential V encountered by the photons in a given medium is attractive for n > 1 and is Suppose that a photon, having momentum ħk in vacuum, enters a transparent medium with index of refraction n > 1. What is the photon's new momentum? 13 Mar 2010 It is 100 years since Minkowski and Abraham first gave rival expressions for the momentum of light in a material medium.

### Although the photon has zero rest mass, it does have energy. From the relativistic relationships among Energy, Mass, and Momentum, E 2 = (M o c 2) 2 + (pc) 2, if the rest mass is zero then the momentum is give by p = E/c. Consider a photon bouncing directly back from a small mirror.

A photo of the COLTRIMS reaction microscope built by Alexander Hartung as part of his doctoral research in the experiment Does the photon have mass? After all, it has energy and energy is equivalent to mass.

What is the photon's new momentum? 13 Mar 2010 It is 100 years since Minkowski and Abraham first gave rival expressions for the momentum of light in a material medium. At the single-photon
When a photon collides with a subatomic particle, lets say an electron, the photon transfers all its energy into the electron and simply ceases to exist. If we apply
9 Jun 2013 Suppose that a photon, having momentum ħk in vacuum, enters a transparent medium with index of refraction n >.

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The resulting momentum of the emitted
Lagrangian quadratic in fields ⟹ Wave equation linear in fields. • It would seem that scattering between photons is impossible. Orbital Angular Momentum in
Photons are said to have no mass but how is that.

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### I ve read that since light is massless that all of its energy comes from its momentum which is demonstrated by E=pc. However, in Newtonian physics momentum is equal to 1/2mv^2 which is an equation that again relies on mass. According to Einstein, momentum of a photon is instead found by p=h/λ.

\ (\displaystyle {p}=\frac {6.63\times10^ {-34}\text { J }\cdot\text { s}} {500\times10^ {-9}\text { m}}=1.33\times10^ {-27}\text { kg}\cdot\text { m/s}\\\) Momentum of Photon. Photon is a type of elementary particle which has a zero rest mass and moves with a speed of light in the vacuum. Einstein explained the momentum (p) of a photon with the given formula. The energy and momentum of a photon are related by the equation. E = pc. where, E = energy of the photon. p = momentum of the photon.