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Liula [17]
4 years ago
13

Why is the definition for second based on the Cesium 133 atom?

Computers and Technology
1 answer:
lutik1710 [3]4 years ago
7 0
It is qualitatively defined<span> as the </span>second<span> division of the hour by sixty, the first division by sixty being the minute. The SI </span>definition<span> of </span>second<span> is "the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the </span>caesium 133 atom<span>".</span>
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   #displaying replaced values counts

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Explanation:

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