Discuss the below:
Q1: Give a very brief description of two observational tests of general relativity.
Q2: An inertial observer sees a particle moving at a speed 3c/5. It then is seen to decay into two photons. Draw an accurate spacetime diagram to illustrate the situation before and after the decay takes place.
Q3: What energies, expressed in terms of the rest mass energy of the inertial particle, would the observer in question A.8 measure for the two photons.
Attachment:- inertia.rar