Question

what are fundamental units ?how do they differ from derived units​

Answer 1

Answer:

fundamental units are the units of the fundamental physical quantity in the SI system. they are not formed from the other units. derived units are those units that are used for derived quantities.

hope it helps

Answer 2

Let us first know -

Physical Quantities - Those quantities which can be measured by an instrument and which describes the laws of physical world.

Types of Physical quantities -

• Fundamental PQ
• Fundamental PQDerived PQ
• Fundamental PQDerived PQSupplementary PQ

Fundamental Physical quantities are those which do not depend on other Physical quantities.

Length , Time, Mass, Amount of substance etc.

Derived Physical quantities are those which are made of fundamental quantities.

e.g

• Area --> m^2 --> Length × Length
• Force --> m/s --> length/time

Hope this helps.