Home › CBSE Class 11 (Science) › Physics › Units and Measurement › Since 2019, the kilogram rests on an exact value…
Since 2019, the kilogram rests on an exact value of which constant?
ABoltzmann constant
BAvogadro constant
CPlanck constant
DSpeed of light
Answer & Solution
Correct answer: C. Planck constant
Since 2019 the kilogram rests on an exact value of the Planck constant h.
Related questions
In electromagnetism, the symbol Q is added to T, L and M to represent what?Which base dimension is often added to T, L and M for thermodynamics?Why are length, velocity and time unsuitable as a set of base dimensions?In mechanics, the base dimensions T, L and M span a space of how many dimensions?Converting 35 yards to metres with 1 yard = 0.9144 m gives what length?Which pair of quantities can be compared directly, even in different units?An equation whose two sides have the same dimensions satisfies which property?Who introduced the concepts of dimensional analysis and quantity dimension in 1822?