Bats chirp at high frequencies humans cannot hear. They use the echos to detect small objects, such as insects, as small as one wavelength. If a bat emits a chirp at a frequency of 60.0 kHz and the speed of of sound waves in the air is 340 m/s, what is the size in millimeters of the smallest insect the bat can detect.
The wavelenghth of a sound can be expressed by
& lambda; = v/f.
So, the size of the smallest insect the bat can detect is
& lambda; = 340[m/s]/(6.00x10^4[Hz]) = 5.7x10^(-3) m.
I just wanted to say thank you guys so much for helping me get through my statistics class. Any area in math has never been my strong field and thanks to you guys I was still able to pass my course.
thanks to you and all the people on your team that helped in me passing my course. :-)