Concept explainers
How long does light take to travel a distance of one light-year?
Time taken by the light to travel distance in one light-year.
Answer to Problem 5A
Time taken by the light to travel distance of one light-year
Explanation of Solution
Introduction: We know that light never stops until any obstruction comes in its path. So travelling of a light also cover a distance which can be measured as one light year.
Given Data:
Speed of light in in vacuum,
Time taken by a light during journey,
One light year
From the value of speed of light, we get
In one second light travels
Time taken by light to travel in one year
Conclusion:
Time taken by the light to travel distance of one light-year
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