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Relativistic Dynamics

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Newton's classical mechanics is inconsistent with Maxwell's electrodynamics. Speed of light changes with reference frame. 1905 Einstein publishes theory of ... – PowerPoint PPT presentation

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Title: Relativistic Dynamics


1
Relativistic Dynamics
  • Chintan Hossain

MIT Junior Lab November 22, 2004
2
Background and Context
  • Newtons classical mechanics is inconsistent with
    Maxwells electrodynamics
  • Speed of light changes with reference frame
  • 1905 Einstein publishes theory of relativity
  • Speed of light same in all reference frames
  • Different laws of motion for each theory

3
Classical and Relativistic Relations
Classical
Relativistic
4
Experimental Apparatus
5
Calibration of MCA
6
Raw Data
7
Count Rate vs. Voltage
8
Kinetic Energy vs. Velocity
9
Final Results
  • Fit of K vs. v data to classical and relativistic
    models
  • Classical model X267.6
  • Relativistic model X21.90
  • Shows strong support for relativistic model
  • mc2 525 22 keV

10
Sources of Error
  • Energy calibration error
  • Non-uniformity of magnetic field
  • Random Poisson error
  • Error in magnetic field measurement

11
Conclusion
  • Energy vs. velocity data fits classical model
    with X267.6 and relativistic model with X21.90
  • mc2 525 22 keV
  • Supports relativistic model
  • Improvements to experiment
  • Take measurements for more time
  • Improve magnetic field measurements
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