question_answer

A signal from space ship has reached the ground station in five minutes. Calculate the distance of the spaceship from the ground station, if the signal travels at the speed of light i.e.\[3\times {{10}^{8}}m/s\]?

A)  \[9\times {{10}^{10}}m\]        

B)  \[7\times {{10}^{9}}m\]

C)  \[5\times {{10}^{8}}m\]         

D)  \[10\times {{10}^{8}}\]

E)  None of these