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A new unit of length is chosen such that the speed of light in vacuum is unity. What is the distance between the Sun and the Earth in terms of the new unit if light takes 8 min and 20 s to cover this distance?
Asked by Abhay Last Modified
Answer Given that,
The speed of light in vacuum is unity
And we want to find the distance between the Sun and the Earth
Use formula
Distance = speed × time
Speed is unity = 1 unit /sec
Time = 8 min and 20 sec = 8 × 60 + 20 sec = 500 sec
Therefore the values we get
Distance between Sun and Earth = 1× 500 = 500 units
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