Home › CBSE Class 11 (Science) › Physics › Units and Measurement › When is a derived SI unit called coherent?
When is a derived SI unit called coherent?
AIt has a special name
BIts numeric factor is one
CIt carries a prefix
DIt has no dimensions
Answer & Solution
Correct answer: B. Its numeric factor is one
A derived unit is coherent when it is a product of powers of base units with a multiplier of exactly one.
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?