Question

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?

Answer 1

C. 3.7x10^4 hours. See ya

Answer 2

Answer : Time taken for the light to reach earth is
`3.7* 10^4\ Hours`

Explanation :

Given that,

Speed of Ultraviolet light,
`v = 3* 10^8\ m/s`

Distance covered by the light,
`d = 4* 10^(13)\ km=4* 10^(16)\ km`

We have to find the time taken (t) by the light to reach on the surface of earth.

`t=(d)/(v)`

`t=(4* 10^(16)\ km)/(3* 10^8\ m/s)`

t = 133333333.333 seconds

`t=37037.03`

or

`t=3.7* 10^4\ Hours`

Hence, this is the required solution.