Question

Write the relation between nanometre and metre.

Answer 1

The relation between nano metre and metre is written as 1 nm = $10^{-9}$ m.

Explanation:

1. Nano metre is smaller unit of length.

2. Relation between nano metre and metre is

   1 nm =$10^{-9}$ m   ...a)

   1m = $10^{9}$ nm     ...b)

3. Now taking some example to convert nano metre into metre from equation a).

   Nano metre                       Metre

   50 nm =$50\times 10^{-9} m =5\times 10^{-8} m$

    2000 nm =$2000\times 10^{-9} m =2\times 10^{-6} m$

4. Now taking some example to convert metre into nano metre from equation b).

  Metre                               Nano metre

 50 m =$50\times 10^{9} nm =5\times 10^{10} nm$

2000m = $2000\times 10^{9} nm =2\times 10^{12} nm$

 

Answer 2

$1\ nm\ = 10^-^9\ m$

Explanation:

Nanometre is a very, very small unit of measuring length. It is written as nm.

 

1 nanometre = $\frac {1}{10^9}$metre

So,  1 nanometer =  $10^-^9$m

Atomic radius of C = 0.077 nm

So, atomic radius of C in m = $0.077 x 10^-^9$ nm.