Question

What are fundamental units? State the S.I. units of seven basic fundamental quantities.

Answer 1

A base unit (also referred to as a fundamental 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 quantities and their Units are;

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.

Have a nice day.


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Answer 2

Hey friend! Here is your answer.

A fundamental(or basic ) unit is that which is independent of any other unit or which can neither be changed nor can be related to any other fundamental unit.

Length = metre

Mass = kilogram

Time = second

Temperature= kelvin

Luminous intensity= candela

Electric current=ampere

Amount of substance = mole