How Does Gravity Influence the Momentum of Light?

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SUMMARY

Gravity influences the momentum of light through the curvature of spacetime rather than through classical Newtonian force. The discussion highlights the relationship between gravitational lensing and the momentum of light, emphasizing that the force on light from massive objects is derived from spacetime curvature. Key concepts include the equation of Universal Gravitation and the implications of gravitational lensing in understanding light's behavior in gravitational fields.

PREREQUISITES
  • Understanding of Universal Gravitation, specifically the equation \vec F = \frac{Gm_1m_2}{r^2}
  • Familiarity with the concept of momentum, particularly \vec p_{light}
  • Knowledge of spacetime curvature and its implications in physics
  • Basic understanding of gravitational lensing and its effects on light
NEXT STEPS
  • Research gravitational lensing and its mathematical models
  • Study the principles of spacetime curvature in General Relativity
  • Explore the relationship between light and gravity in astrophysical contexts
  • Examine experimental evidence supporting the momentum of light in gravitational fields
USEFUL FOR

Physicists, astrophysicists, and students studying General Relativity and gravitational effects on light. This discussion is particularly beneficial for those interested in the intersection of gravity and light behavior.

Phys_Boi
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So light has momentum: [itex]\vec p_{light}[/itex]

If Universal Gravitation tells us: [itex]\vec F = \frac{Gm_1m_2}{r^2}[/itex]

How do we get the force on light from the more massive object?... How do we know how much light will be shifted?
 
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Looking up gravitational lensing should give you some of the answers you seek.

We don't talk about the force of gravity - that's Classical Newtonian - we talk about the curvature of spacetime.
 
DaveC426913 said:
Looking up gravitational lensing should give you some of the answers you seek.
Okay thanks
 

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