Advertisements
Advertisements
प्रश्न
The SI unit of time, the second (s), is defined based on the transition frequency of which atom?
पर्याय
Caesium-133
Carbon-12
Platinum-Iridium
Hydrogen-1
MCQ
Advertisements
उत्तर
Caesium-133
Explanation:
The second is defined as the duration of a specific number of periods of radiation corresponding to a transition in the Caesium-133 atom.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
