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प्रश्न
The new definition of the kilogram is based on fixing the exact value of which fundamental constant?
पर्याय
Boltzmann constant (k)
Elementary charge (e)
Planck constant (h)
Avogadro constant (NA)
MCQ
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उत्तर
Planck constant (h)
Reason:
The kilogram is now defined by fixing the Planck constant (h) and is realized through experiments like the Kibble balance.
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