Convert the following into basic units :
(i) 28.7 pm
(ii) 15.15 `mu`s
(iii) 25365 mg

Explanation

(i) 28.7 pm = 28.7 pm `xx (10^(-12)m)/(1 "pm") = 2.87 xx 10^(-11)` m
(ii) `15.15 mu s = 15.15 mus xx (10^(-6)s)/(1 mus) = 1.515 xx 10^(-5)`s
(iii) 25365 mg = 25365 mg `xx (1 g)/(1000 mg) xx (1 kg)/(1000 g)`
=`2.5365 xx 10^(-2)`kg