Anand is on board a space rocket travelling towards Proxima Centauri when he passes…
PHYSICS · Multi-part · CBSE · Physics · Dual Nature of Radiation and Matter · A Level
Problem
Anand is on board a space rocket travelling towards Proxima Centauri when he passes Louis observing from the Earth. Louis observes that Anand's space rocket is travelling at 0.9c with respect to the Earth. Proxima Centauri is 4.0 light-years from the Earth.
(1) Calculate the time it takes for Anand's space rocket to reach Proxima Centauri as measured by Louis on the Earth. (You may assume that the Earth remains stationary during this time.)
(2) Calculate the time that Anand measures for him to reach Proxima Centauri.
(3) Which of your answers to parts a and b is a proper time?