What is the momentum of an electron?

Angular momentum of an electron by Bohr is given by mvr or nh/2π (where v is the velocity, n is the orbit in which electron is, m is mass of the electron, and r is the radius of the nth orbit).

How do photons have momentum?

In short, even though photons have no mass, they still have momentum proportional to their energy, given by the formula p=E/c. Because photons have no mass, all of the momentum of a photon actually comes from its energy and frequency as described by the Planck-Einstein relation E=hf.

What is momentum of a particle?

The momentum of a particle is defined as the product of its mass times its velocity. It is a vector quantity. The momentum of a system is the vector sum of the momenta of the objects which make up the system.

How are relativistic energy and momentum related?

Relativistic Energy and Mass. In special relativity, as the object approaches the speed of light, the object’s energy and momentum increase without bound.

How is momentum and energy related?

Relationship Between Kinetic Energy and Momentum. The relationship between kinetic energy and momentum is given by the equation T=p2/2m, where T is kinetic energy, p is momentum and m is mass. This relationship comes directly from the definitions of momentum (p=mv) and kinetic energy (T=½mv2).

What are photons made of?

A photon is a tiny particle that comprises waves of electromagnetic radiation. As shown by Maxwell, photons are just electric fields traveling through space. Photons have no charge, no resting mass, and travel at the speed of light.

What makes a photon move?

A photon is a pulse of an electric field which when it collapses produces a magnetic field which when it collapses produces an electric field and so on and on until either the electric field and/or the magnetic field is absorbed by something. In other words the photon propagates itself thus moving away from the source.