Calculating Wavelength in a Medium with Different Speed of Sound

[Deebu R]

Homework Statement

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?

Homework Equations

Wavelength = wave speed/ frequency...maybe

The Attempt at a Solution

Using the equation I got 300 x 10/(3 x 10^5)=0.01[/B]

 

[BvU]

Hi,

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 ?

 

[Deebu R]

I am guessing meters so in cm it becomes 1 cm, right?

 

[BvU]

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)

 

[Deebu R]

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)

I was just making sure. Thank you for the help.