The smallest interval of time after which the motion repeats is called its:
APardon
BPeriod
CPerson
DParcel
Answer & Solution
Correct answer: B. Period
1. Repeating motion comes back to the same state again and again.
2. The gap between two such returns is what is being named.
3. The smallest interval of time after which the motion is repeated is called its period.
4. So the answer is the period.
_Source: NCERT Class XI Physics Part II, Ch 13 'Oscillations'_
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