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Question
The revolution of the earth around the sun is periodic.
Options:
A .  True
B .  False
C .  oscillatory
D .  circular
Answer: Option A
:
A
Motion that repeats itself after a fixed interval of time is known as periodic motion.
The earth takes approximately the same time, i.e. 365 days to complete one revolution around the sun. Hence, it is a periodic motion.

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