Question

(i)1 micron $=\frac{1}{1000000}$m. Express it in standard form.

(ii)Size of a bacteria =0.0000004 m. Express it in standard form.

(iii)Thickness of a papaer =0.03 mm. Express it in standard form.

Answer 1

(i)1 micron $=\frac{1}{1000000}=\frac{1}{{10}^6}$

$=(1\times {10}^{-6})$

(ii)Size of bacteria =0.0000004 m

$=\frac{4}{10000000}m=\frac{4}{{10}^7}m$

$=(4\times {10}^{-7})m$

(iii)Thickness of a paper =0.03 mm

$=\frac{3}{100}mm=\frac{3}{{10}^2}m$

$=(3\times {10}^{-2})mm$