How does a massless photon impart force?

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SUMMARY

Massless photons can impart force through their momentum, which is a fundamental concept in physics. Despite having no mass, photons possess momentum that enables them to exert a change of momentum on objects they interact with. This principle is crucial for applications such as using lasers to propel deep space probes. Understanding the relationship between photon momentum and force is essential for grasping advanced physics concepts.

PREREQUISITES
  • Understanding of photon properties and behavior
  • Basic knowledge of momentum in physics
  • Familiarity with the concept of force in classical mechanics
  • Awareness of applications of lasers in propulsion technology
NEXT STEPS
  • Study the concept of photon momentum in detail
  • Explore the physics behind laser propulsion systems
  • Learn about the implications of massless particles in quantum mechanics
  • Investigate real-world applications of photon momentum in technology
USEFUL FOR

Physics students, researchers in quantum mechanics, engineers working on propulsion technologies, and anyone interested in the principles of light and force.

dev_c0t0d0s0
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I've been watching a lot of physics videos lately and a couple of said that photons are massless. What I don't understand is how a massless photon can impart force? Like the ideas of having a laser propel a deep space probe.
 
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dev_c0t0d0s0 said:
how a massless photon can impart force
A Massless object can still have Momentum. It is the Momentum of a Photon that imparts a change of Momentum (i.e. a force) on an object that it hits.
 

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