Question

$2500m^{-3}$ = $2.5\times$ ___ $c{m}^{-3}$

• A. ${10}^{-2}c{m}^{-3}$
• B. ${10}^{-4}c{m}^{-3}$
• C. ${10}^{-3}c{m}^{-2}$
• D. ${10}^{-3}c{m}^{-3}$

Answer 1

The correct option is D

${10}^{-3}c{m}^{-3}$

We know $1m=100cm$

$2500m^{-3}$$=2500\times (100cm{)}^{-3}$

$=2500\times \frac{1}{100}\times \frac{1}{100}\times \frac{1}{100}gc{m}^{-3}$

$=2.5\times {10}^{-3}c{m}^{-3}$