Question

different b/w fundamental and derived units

Answer 1

Fundamental units is the unit which is independent of any other unit .It can neither be obtained from nor be related to other fundamental unit .
Derived unit can be expressed in terms of fundamental unit .
hope it is helpful...

Answer 2

fundamental units r the units of physical quantities which has a great size n doesn't depends on other quantities ex : length , mass

dervied units r the units which depends on the fundamental units