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smk222
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i read some where that four momentum of photon is null vector that's why photon have zero rest mass.but i cannot get it.please help
Photon Rest Mass: Understand 4 Momentum & Mass
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SUMMARY
The four-momentum of a photon is classified as a null vector, which directly leads to the conclusion that photons possess zero rest mass. This concept is rooted in the principles of special relativity, where the four-momentum vector is defined as the energy and momentum of a particle in a four-dimensional spacetime framework. The null nature of the four-momentum indicates that the invariant mass of the photon is zero, confirming its massless characteristic.
PREREQUISITES- Understanding of special relativity principles
- Familiarity with four-momentum concepts
- Basic knowledge of vector mathematics
- Comprehension of mass-energy equivalence
- Study the concept of four-vectors in special relativity
- Learn about the implications of massless particles in physics
- Explore the relationship between energy, momentum, and mass
- Investigate the mathematical formulation of null vectors
Students of physics, educators teaching special relativity, and researchers exploring the properties of light and massless particles.
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