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The period of a quartz crystal's vibration is expressed in:
AMicroseconds
BKiloseconds
CWhole minutes
DFull hours
Answer & Solution
Correct answer: A. Microseconds
1. Some periodic motions are far too fast for seconds.
2. A convenient smaller unit is used instead.
3. Quartz vibrations are quoted in microseconds.
_Source: NCERT Class 11 Physics Part II, Chapter 14, Oscillations._
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