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The amplitude of SHM can be taken as a quantity that is:
ANegative
BImaginary
CUndefined
DPositive
Answer & Solution
Correct answer: D. Positive
1. Amplitude is a magnitude, so its sign is a matter of convention.
2. Nothing is lost by fixing that convention.
3. It can be taken to be positive.
_Source: NCERT Class 11 Physics Part II, Chapter 14, Oscillations._
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