If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Standing waves

# Wavelength and frequency for a standing wave

You might need: Calculator

## Problem

A string of length L vibrates to form a standing wave with two antinodes as shown below.
What is the wavelength of the standing wave?