Measurement of Physical Quantities — Science STD 7 — Question
Maharashtra BoardEnglish MediumSTD 7ScienceMeasurement of Physical Quantities3 Marks
Question
What is an atomic clock?
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Answer
An extremely accurate type of clock which is regulated by the vibrations of an atomic or molecular system such as caesium atom or ammonia is called atomic clock. It is used to maintain standard times of countries accurately.
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