Answer
Monochromatic light contains photons that all have a single frequency (or color). Sunlight contains a broad spectrum of photons with many different frequencies.
Work Step by Step
This is discussed on page 575.
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.