Chapter 27, Problem 53A

To determine

The wavelength of the infrared light from an argon laser in nanometers is to be calculated.

Answer to Problem 53A

The wavelength in nanometers is $\text{1090}\text{nm}$ .

Explanation of Solution

Given info:

  $\text{1}\text{nm}\text{=}{\text{10}}^{\text{-9}}\text{m}$

The wavelength of the infrared light in meter = $\text{0}\text{.00000109}\text{m}$

Formula used:

The 1 nanometer equals to the ${\text{10}}^{\text{-9}}\text{m}$

Calculation:

  $\begin{array}{l}{\text{10}}^{\text{-9}}\text{m}\text{ =}\text{1 nm}\\ \text{1m}\text{=}\frac{\text{1}}{{\text{10}}^{\text{-9}}}\text{nm}\end{array}$

So, the wavelength of the infrared light in nanometer is

  $\begin{array}{l}\frac{\text{1}}{{\text{10}}^{\text{-9}}}\text{×}\text{0}\text{.00000109}\text{nm}\\ \text{1090}\text{nm}\end{array}$

Conclusion:

The infrared light wavelength in nanometers is $\text{1090}\text{nm}$ .