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The number of repetitions per unit time is called the:

AFrequency
BFrailty
CFraction
DFriction
Answer & Solution
Correct answer: A. Frequency
1. It is the reciprocal of the period. 2. It is represented by the Greek letter nu. 3. It is the frequency. _Source: NCERT Class 11 Physics, Ch 13 'Oscillations'_
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