How Do Black Holes Influence the Path of Light?

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SUMMARY

Black holes influence the path of light through their gravitational effects, which curve spacetime. Although photons are massless, they are still affected by gravity as they follow the shortest paths in the curved spacetime created by massive objects. This principle is rooted in the theory of relativity, which states that gravity does not pull objects but rather alters the geometry of space around them. Thus, both massless and massive particles are guided by the curvature of spacetime.

PREREQUISITES
  • Understanding of general relativity
  • Familiarity with the concept of spacetime curvature
  • Knowledge of photon properties in physics
  • Basic grasp of gravitational effects on light
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  • Study the implications of general relativity on light behavior
  • Explore the mathematics of spacetime curvature
  • Investigate the properties of photons in gravitational fields
  • Learn about gravitational lensing and its applications
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Astronomers, physicists, students of relativity, and anyone interested in the interaction between gravity and light.

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How does the gravity affect of a black hole pull in light?

aren't photons massless?
 
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In relativity, gravity curves spacetime, and particles (massless and non-massless) follow the shortest paths in that curved spacetime. Therefore, gravity effects photons.
 
Yes, as nicksauce points out, gravity does not pull things; gravity is simply a curve in spacetime. Photons follow this curve, just like massive particles do.
 

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