A star is 8.1 x 1013 km away from the earth.Suppose light travels at the speed of 3.0 x 105 km per second. How long will it take light from the star to reach the earth?

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Question: A star is 8.1 x 1013 km away from the earth.Suppose light travels at the speed of 3.0 x 105 km per second. How long will it take light from the star to reach the earth?

1.7.5 x 103 hrs

2.7.5 x 104 hrs

3.2.7 x 1010 sec

4. 2.7 x 1011 sec

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  1. A star is 8.1 x 1013 km away from the earth.Suppose light travels at the speed of 3.0 x 105 km per second. How long will it take light from the star to reach the earth?
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