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(a) The SI was established in 1960 by the 11th General conference on weights and measure (CGPM).....
➡ It was defined by SI Brochure,,,which is published by the BIPM....
(b) The purpose to introduce SI unit is :-
➡ It allows people in different places and different countries to use the same unitunit, ,avoid mistakes,,and understand each other more easily....
➡ The common base 10 of all units make it easier and has more accurate calculations that are made without cumbersome conversion factors....
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