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UPSC CSE Pre 2021
Question #12
Physics
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Which one of the following is a reason why astronomical distances are measured in light-years?
A
Distances among stellar bodies do not change.
B
Gravity of stellar bodies does not change.
C
Light always travels in straight line.
D
Speed of light is always same.
Pick an option above to test your answer
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Subject:
Science & Technology
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Q: Which one of the following is a reason why astronomical distances are measured in light-years?... | UPSC CSE Pre 2021 PYQ | UPSCGPT