Confused About Light & Mass: Get Help Here!

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SUMMARY

This discussion centers on the relationship between light and mass, specifically addressing the calculation of energy for a photon. The key formula referenced is Einstein's E=mc², which is essential for understanding energy conservation in transformations involving mass and light. The conversation highlights the impossibility of a sombrero transforming into a single light particle without violating conservation laws, emphasizing the need for multiple particles to conserve total energy. Resources on special relativity are recommended for further understanding.

PREREQUISITES
  • Understanding of Einstein's E=mc²
  • Basic knowledge of energy conservation principles
  • Familiarity with the concept of photons
  • Introduction to special relativity
NEXT STEPS
  • Research the concept of photons and their energy calculations
  • Study the principles of energy conservation in physics
  • Explore special relativity and its implications on mass-energy equivalence
  • Learn about particle transformations and their energy implications
USEFUL FOR

Students of physics, educators, and anyone interested in the fundamental concepts of light, mass, and energy conservation.

Dgonzo15
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I just got unit work of light and mass, and know NOTHING about it, and the site has no resource links. Can someone please tell me a general idea of what there is to know about light and mass, formulas, or any resources I can use?

Also, how would you calculate the 'energy' of a photon, such as in the question "A sombrero spontaneously transforms into a light particle. What would be its energy?" ?
 
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Books about special relativity should help.

"A sombrero spontaneously transforms into a light particle. What would be its energy?"
It cannot, this would violate energy or momentum conservation. If it transforms into multiple light particles, total energy is conserved. You can calculate the total energy of the sombrero (in its rest frame) with the famous formula E=mc2.
 

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