Published by:
CGP EDU Academic Team
Published on: September 12, 2026
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?
Text Solution
Verified by ExpertsThe correct answer is:
C
Here, Speed of light in vacuum,
C = 1 new unit of length 
Time taken by light of sun to reach the earth t = 8 min and 20 seconds
Distance between the sun and the earth
S = ct = 1 new unit of length 
= 500 new unit of length
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