Question

Explain fundamental unit and independent unit.

Answer 1

Fundamental Units :

The units selected for measuring mass, length and time are called as Fundamental units.

1.The fundamental units are not defined in terms of other quantities. For this reason they are called as Base or fundamental quantities.
2.The units of these three fundamental are independent of each other.Units of physical quantites can be expressed in terms of fundamental units and are called as Derived units.
Old system of Fundamental units
:C.G.S (centimeter --unit of length, Gram ---unit of mass , seconds--unit of time)
M.K.S (Meter -- unit of length , Kilogram --- unit of mass, Second-- unit of time)

New system:
SI units (systeme International ) was introduced in 1960 and have been accepted by all countries for scientific work.
The seven basic quantities under SI units are :-
-->mass
--->length
--->time
--->electric current
---->temperature
---->luminous quantity
--->quantity of matter

Answer 2

Answer:

The independent and fundamental units are:- Kilogram, meter, seconds

Explanation:

SI base unit:

The unit selected to measure mass, length, and time is called the SI base unit.

1. The basic unit is not defined in any other quantity. For this reason, they are called basic quantities or basic quantities.

2. The units of these three basic units are independent of each other.

3. The unit of physical quantity can be expressed as a basic unit and is called a derived unit.

Old system of basic unit

C.G.S (centimeter unit of length, gram unit of mass, second unit of time)

M.K.S (Unit of Length, Kilogram  of Mass, Unit of Seconds of Time)

New System:

The SI unit (System of Units) was introduced in 1960 and has been accepted in all countries for scientific research.

The seven basic quantities of the SI system of units are as follows.

1. Mass
2. length
3. Time
4. Current
5. Temperature
6. Amount of light
7. Amount of substance