- #1
aloshi
- 79
- 0
how can we sad that photon does not have a mass? in my book they are a piece that there write at the photon influence of gravitation?
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SUMMARY
Photons do not possess rest mass, yet they exhibit properties that contribute to gravitational effects. When photons are introduced into a system, such as a box, the overall weight of that system increases, demonstrating that photons carry energy that influences gravitational interactions. This distinction between rest mass and the effective mass of energy is crucial in understanding the behavior of photons in gravitational fields.
PREREQUISITES- Understanding of Einstein's mass-energy equivalence (E=mc²)
- Basic knowledge of photon properties and behavior
- Familiarity with gravitational theory
- Concept of effective mass in physics
- Research Einstein's theory of relativity and its implications on mass and energy
- Explore the concept of effective mass in quantum mechanics
- Study gravitational effects of light and photons in general relativity
- Investigate experimental evidence of photon behavior in gravitational fields
Physicists, students of physics, and anyone interested in the fundamental properties of light and its interaction with gravity.
- #2
tiny-tim
Science Advisor
Homework Helper
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aloshi said:
Hi aloshi!
Mass is energy, energy is mass.
A photon does not have rest-mass, but it does have mass.
A box into which photons are inserted (from outside) weighs more, and exerts more gravity.
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