Question

can any one say me what is 1 second =​

Answer 1

Today, one second is defined as “9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom”. ... When scientists moved to their new “atomic clock” in 1967, they calibrated it with his measurements.

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Answer 2

Answer:

Today 1 second is defined as "9,192,631,770" Period of radiation corresponding to the transaction between the Two hyperfine level of the ground State of the cesium of 133 Atmos

Explanation:

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