Answer
The argon laser.
Work Step by Step
For waves of the same type, e.g., electromagnetic waves, higher frequencies correspond to shorter wavelengths.
This is discussed on page 490.
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.