Question

Fill in the blanks in the following conversions:
i) $1km=...........mm=...........pm$
ii) $1mg=..........kg=..........ng$
iii) $1mL=..........L=..........d{m}^3$

Answer 1

According to standard units of measurement

$\left(i\right)$ $1km={10}^{3}m={10}^{6}mm$

$1pm={10}^{-12}m$ so $1m={10}^{12}pm$

$1Km={10}^{6}mm={10}^{15}pm$

$\left(ii\right)$ $1kg={10}^{3}g={10}^{6}mg$

$1ng={10}^{-9}g⟹1g={10}^{9}ng$

$1mg={10}^{-6}kg={10}^{6}ng$

$\left(ii\right)$ $1ml={10}^{-3}l$ $1L=1d{m}^3$

$1ml={10}^{-3}l$ $={10}^{-3}d{m}^3$