You are Here: Home >< Physics

# Stationary wave definition

Announcements Posted on
TSR's new app is coming! Sign up here to try it first >> 17-10-2016
1. A stationary wave is the superposition of two progressive waves with the same frequency and wavelength travelling in opposite directions.
Is this a correct definition of stationary waves?
A stationary wave is the superposition of two progressive waves with the same frequency and wavelength travelling in opposite directions.
Is this a correct definition of stationary waves?
Yes, and also the same amplitude. You don't need to say "same frequency and wavelength" because they are directly proportional so just say same frequency and amplitude.
3. I thought it was enought to just say "a wave which traps energy between two points (has nodes and antinodes)"

Im doing OCR btw so Im not sure if its different for your exam board - if its not OCR.
4. (Original post by voltz)
I thought it was enought to just say "a wave which traps energy between two points (has nodes and antinodes)"

Im doing OCR btw so Im not sure if its different for your exam board - if its not OCR.
I think it's AQA and if it is then I think that definition wouldn't get the marks.
5. I would define a stationary wave as one which has points with zero discplacement (nodes) that do not change with time.

The fact that these can be formed by the superposition of two oppositely travelling waves with equal frequnecies and wavelengths is somewhat incidental, I think. Check the AQA spec though.

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: May 18, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### How does exam reform affect you?

From GCSE to A level, it's all changing

### Who would you like to thank?

Poll
Study resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.