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Describing periodic motion needs period, frequency, displacement, phase and:
ATemperature
BAmplitude
CViscosity
DResistance
Answer & Solution
Correct answer: B. Amplitude
1. Five concepts are named together for the description.
2. Four are period, frequency, displacement and phase.
3. The fifth is amplitude.
_Source: NCERT Class 11 Physics Part II, Chapter 14, Oscillations._
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