Q12 of 47 Page 8

During an experiment, a signal from a spaceship from the ground station in 5 minutes. What was the distance of the spaceship from the ground station? The signal travels at the speed of light i.e., 3×108 ms-1.

As we know,

Speed = (i)


Given, Speed = 3×108 ms-1


Distance travelled =?


Time taken = 5 minutes


= 5×60


= 300 seconds


Now we put the values in equation (i), we get


3 × 108 =


Distance travelled = 3×108 × 300


= 9 × 1010 m


Therefore, the distance of spaceship from the ground station is 9 × 1010 metres.

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