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?
Answer:
Distance between the Sun and the Earth:
= Speed of light × Time taken by light to cover the distance
Given that in the new unit, speed of light = 1 unit
Time taken, t = 8 min 20 s = 500 s
∴Distance between the Sun and the Earth = 1 × 500 = 500 units
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?
Answer:
Distance between the Sun and the Earth:
= Speed of light × Time taken by light to cover the distance
Given that in the new unit, speed of light = 1 unit
Time taken, t = 8 min 20 s = 500 s
∴Distance between the Sun and the Earth = 1 × 500 = 500 units
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