5. Event 1 occurs at a time of 0 seconds and O meters from a stationary obeerver

Question

5. Event 1 occurs at a time of 0 seconds and O meters from a stationary obeerver. Event 2 ocCE at a time of 2 microseconds later, 100 meters away from the observer. which of the followin statements is true? a. The space-time interval between the events is space-like b. The space-time interval between the events is time-like c. The space-time interval between the events is light-like d. There exists a reference frame in which event 2 occurred before event 1 6. The death star is traveling towards planet Alderaan at a relativistic speed and fires it's powerful super-laser (at Alderaan). At the same time a shuttle is launched from the other side of the death star (away from Alderaan) to inform the emperor of what has transpired. Assuming the beam looks green at the surface of the death star, the beam would appear to the poor people on Alderaan and- , to those in the shuttle. a. red, blue b. blue, red c. blue, green d. red, green

Explanation / Answer

5.) Statement b is true i.e. the space time interval between the two events is time-like. The condition for time like events is time separation between the two events is greater than the time taken by light in covering the distance between them

r12/c < (t2-t1) ; where r12 is the distance between the two events and c is velocity of light and t2 and t1 are the time taken by two events.

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