Chapter 5.1, Problem 5.8QAP

Interpretation Introduction

Interpretation:

To determine the given wavelength i.e. 850 nm in meters.

Concept introduction:

Wavelength: It may be defined as the distance between two successive crest of a wave. Unit of wavelength is ‘nm’.

Generally, wavelength of radiations is very short. Therefore, it is usually measure in nanometres.

And,

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