Multiple Choice
The second is currently defined as
A) 1/86,400 of a mean solar day.
B) 1/86,164 of a sidereal day.
C) 1/31,557,600 of the period of the Earth's rotation around the Sun.
D) the time required for light to travel 1/299,792,458 of a meter.
E) the time that it takes the radiation from a Cesium-133 atom to complete 9,192,631,770 cycles of oscillation.
Correct Answer:
Verified
Correct Answer:
Verified
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