Home » Ask Physics » Wave travelling from one medium to another

Wave travelling from one medium to another

Share with:


Iqbal Lucky asked

“when a wave enters from air to water, its wavelength changes but

frequency remains unchanged. why”

Answer

Velocity of a wave = frequency x time period

V = ν λ

When a wave travels from one medium to another, its velocity changes and so also is its wavelength, but frequency; which is the number of vibrations produced per second is independent of the medium, remains constant.

However, their is a phenomenon called Doppler Effect where the apparent frequency (observed frequency) is different from actual frequency and is caused by the relative movement between the source and observer (listener)

Got a better answer?

Please post it as comment.

Ask a Doubt

Post your Physics Doubts here

Name (required)

Email (required)

Subject

Message/Doubt/Question

Upload a file if required

Archives

askphysics@Twitter

  • Post Edited: Scattering, Blue Sky, reddish sun https://t.co/wrRZys2xpe
    about 4 weeks ago
%d bloggers like this: