The document discusses Albert Einstein's Special Theory of Relativity, which established that the laws of physics are the same in all inertial reference frames and that the speed of light in a vacuum is constant. It explains key concepts such as length contraction, time dilation, and mass-energy equivalence that arise from these postulates. Examples are provided to illustrate how observations of phenomena can change depending on the reference frame of the observer.

1. Theory of R elativity Special By Nikhil Sharma

2. “…… ..Undoubtedly mechanics was a snapshot of slow and real motions, while new physics is a snapshot of fabulously swift and real motions……..” V.I.Lenin

6. Here we can see the Effect of Reference frame on the Observations taken by the observer.

16. Let us see the effect of Time dilation on a Radio active mass.

17. Here the active mass is moving at an velocity comparable to c.

20. Variation f Mass

23. Explanations Slide 3 - 6 Slide 7 - 9 Slide 9 - 15 Slide 16 - 19 Slide 20 Slide 20 Contd. Please Zoom these pictures Separately.