Question

The two nearest harmonics of a tube closed at one end and open at other end are 220Hz and 260Hz what is the fundamental frequency of the system?
(a)-10Hz
(b)-20Hz
(c)-30Hz
(d)-40Hz ​

Answer 1

I think it is - 40Hz

Answer 2

it's -40 dude ... confirm.... hope it's helps u ...mark me as branliest..and follow me