Motion of Train vs Platform: A Radiation Comparison

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SUMMARY

The discussion centers on the radiation frequency emitted during electron-positron annihilation in a moving train compared to a stationary railway platform. Observers on the train perceive a lower frequency of radiation, while those on the platform observe a higher frequency. This phenomenon suggests that the motion of the train is real, while the platform's motion is apparent. However, conducting the same experiment on the platform yields identical results, indicating that there is no definitive way to ascertain which frame of reference is correct.

PREREQUISITES
  • Understanding of special relativity principles
  • Familiarity with particle physics concepts, specifically electron-positron annihilation
  • Knowledge of frequency and wavelength in electromagnetic radiation
  • Basic grasp of reference frames in physics
NEXT STEPS
  • Research the implications of special relativity on particle interactions
  • Explore the concept of frame of reference in physics
  • Investigate experimental setups for measuring radiation frequency
  • Learn about the Doppler effect in relation to moving observers
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Physicists, students of relativity, and anyone interested in the nuances of motion and radiation in different reference frames.

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the frequency of radiation emitted when electron and positron are annihilated in the moving carriage is more than the the frequency of radiation emitted when the same experiment is done on railway platform .Is it not enough to decide that the motion of the train is real while platform motion is apparent
 
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no

Standing on the platform looking at the train, you see higher frequency, while standing on the train you see lower frequency.

Doing the exact mirror experiment with the positron and electron pair located on the platform instead, yields exact mirror results.

There's no way to determine which answer is the correct one.
 

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