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0.8 What are fundamental quantities andfundamental units?State two examples offundamental quantities and their SI and CGs units.

Answer»

Abase unit(also referred to as afundamental unit) is a unit adopted for measurement of a base quantity. A base quantity is one of a conventionally chosen subset of physical quantities, where no quantity in the subset can be expressed in terms of the others.

Fundamental quantitiesand theirUnitsare;

Length- Meter(SI), Cm(CGS)

Mass - Kilogram

Time- Seconds

Electric current -Ampere(SI), Bi(CGS)

Temperature- Kelvin,

Amount of substance -Mole

and

Luminous intensity.- Candela.



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