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Explain the meaning of derived unit with...

Explain the meaning of derived unit with the help of one example.

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Derived units are units of measurement derived from the seven base units specified by the International System of Units (SI). They can be expressed as a combination of one or more fundamental units.
Example : Density = `"Mass"/"Volume"`
The unit of density = fundamental unit of mass/ Cube of the fundamental unit of length
The unit of density = `kg//m^3` or `"kg m"^(-3)`
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