What is the method to obtain derived unit of density
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Answered by
2
Answer:
see in attachment ..................
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Answered by
1
Answer:
Density is a derived unit because it is defined in terms of other units.
Explanation:
Density is measured in
k
g
⋅
m
−
2
. This means that it is derived from fundamental units which are the kilogram and metre.
The kilogram is defined as the mass of a platinum-iridium cylinder which is kept in France. This is the only fundamental unit which is still defined by an artefact.
The second is defined at the time take for
9
,
192
,
631
,
770
transitions of a caesium 133 atom. The speed of light is defined to be exactly
299
,
792
,
458
m
s
−
1
. Now the metre is defined to be the distance light travels in
1
299
,
792
,
458
seconds.
hence the kilogram and the metre are SI units and density is a derived unit from these units.
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