# Sonar wavelength

1. Dec 11, 2006

### wakejosh

1. The problem statement, all variables and given/known data

a bat operates on SONAR system at a frequency of about 50khz. Since SONAR only responds to targets larger than one wavelength in size, cant he bat detect mosquitos that are about 2mm in size?

2. Relevant equations

v= change in x/change in t

3. The attempt at a solution

for 50 KHz i find the wavelength to be 6.88 mm, so the bat will not detect the small 2mm mosquitos. is this correct?

2. Dec 11, 2006

### Kurdt

Staff Emeritus
looks alright to me, but I'm not sure why you posted that equation. The one you need to use and it looks like you have is $$c=f\lambda$$