Light from Distant Star to Earth: Time Calculation
Calculation for Time Taken
To find the time it takes for ultraviolet light to reach Earth, we need to convert the given distance from kilometers to meters and divide it by the speed of light.
Explanation:
Using the formula:
Time = Distance / Speed
Converting the distance from kilometers to meters:
4.0 x 10^13 km = 4.0 x 10^13 x 10^3 m = 4.0 x 10^16 m
Plugging in the values into the formula:
Time = 4.0 x 10^16 m / 3.0 x 10^8 m/s = 1.33 x 10^8 s
Therefore, the ultraviolet light will take approximately 1.33 x 10^8 seconds to reach Earth.