I think I believed him because of the fact that when you look at the size of hydrophones; the higher the frequency, the smaller the size of the hydrophone.Which led me to think that sound at the Mhz range will be pretty small. I actually tried explaining to him that it's probably bcuz of the...
Thanks Berkeman for the reply. Although I wasnt talking abt the wavelength. More like the size of the sound wave.
You see I am trying to understand the use of a needle hydrophone which is used to detect ultrasound waves underwater. So I am basically trying to find out why it's so small in...