Ultraviolet light from a distant star is traveling at 3.0 * 108 m/s. How long will it take for the light to reach Earth if it must travel 4.0 * 1013 km? 2.7 * 10-2 hours 2.2 * 103 hours 3.7 * 104 hours 1.3 * 105 hours

Option D is the correct answer.

Explanation:

Ultraviolet light from a distant star is traveling at 3.0 * 10⁸ m/s.

Speed = 3.0 * 10⁸ m/s

We need to find how long will it take for the light to reach Earth if it must travel 4.0 * 10¹³ km

Distance = 4.0 * 10¹³ km = 4.0 * 10¹⁶ m

We know

Distance traveled = Speed of travel x Time taken

4.0 * 10¹⁶ = 3.0 * 10⁸ x t

t = 1.33 x 10⁸ s

Time, t = 37037 hours = 3.7 x 10⁴ hours

Option D is the correct answer.