Question

Convert the following into $SI$ unit:
$\left(i\right)28.7pm$
$\left(ii\right)15.15pm$
$\left(iii\right)25365mg$

Answer 1

$SI$ unit of length is $metre$ and that of mass is $Kg$.
The conversions into $SI$ unit are shown below:

(i) 28.7 pm $=28.7pm\times \frac{1m}{{10}^{12}pm}=2.87\times {10}^{-11}m$

(ii) 15.15 pm $=15.15pm\times \frac{1m}{{10}^{12}pm}=1.515\times {10}^{-11}m$

(iii) 25365 mg $=25365mg\times \frac{1kg}{{10}^{6}mg}=2.5365\times {10}^{-2}kg$