Answer
$1700$ waves
Work Step by Step
Use dimensional analysis to find how many waves make up the 1.0 millimeter thickness. $$1.0mm \times \frac{1.0\times10^6nm}{1.0mm}\times \frac{1wave}{590nm}=1700waves$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.