Question

12579 nm rounded to 3 significant figures is

Answer 1

1.26e-5

Step-by-step explanation:

Change 12579 nm to meters first, it becomes 1.2579e-5, then rounding it to 3 significant figures becomes 1.26e-5.

Answer 2

`\\ \sf\longmapsto 12579nm`

`\\ \sf\longmapsto 12579* 10^(-9)m`

`\\ \sf\longmapsto 1257.9* 10^(-8)m`

`\\ \sf\longmapsto 12.5* 10^(-6)m`

`\\ \sf\longmapsto 12.5\mu m`