1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Order of wavelength

  1. Sep 14, 2016 #1
    1. The problem statement, all variables and given/known data
    Ultrasonic waves of frequency 3 x 10^5 Hz are passing through a medium where speed I found is 10 times that in air ( speed of sound in air is 300m/s). The wavelength of this wave in the medium will be in the order of?

    2. Relevant equations
    Wavelength = wave speed/ frequency.....maybe

    3. The attempt at a solution
    Using the equation I got 300 x 10/(3 x 10^5)=0.01
  2. jcsd
  3. Sep 14, 2016 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member


    Is there a question you need help with here ?

    I don't want to be corny, but: is that in inches, miles or in furlongs :smile:?
  4. Sep 14, 2016 #3
    I am guessing meters so in cm it becomes 1 cm, right?
  5. Sep 14, 2016 #4


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Of course. It's just that I wanted to emphasize to you that you should always include units.

    (also in calculations: 300 m/s x 10/(3 x 10^5 /s ) = 0.01 m -- the factor 10 is a ratio, no dimension)
  6. Sep 14, 2016 #5
    I was just making sure. Thank you for the help.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Order of wavelength
  1. No of wavelengths (Replies: 5)

  2. Wavelength difference (Replies: 7)

  3. Find the wavelength (Replies: 5)