How$to$calculate$Hertz$$
$the$frequency$of$each$pipe$
What$is$a$Hertz?$$It$is$the$SI$unit$of$frequency,$equal$to$one$cycle$per$second.$$$
$$
ν$=$speed$of$sound$in$air$(room$temperature)~$330-340$m/s$
$
λ$=$wavelength$(4#X’s#the#length#of#the#tube#measured#in#meters)#
$10cm$=$.10$m$
$$
f$=$frequency$in$Hertz$$
$
$$$
The$velocity$of$a$sound$wave$(v)$is$equal$to$its$frequency$(f)$Lmes$its$wavelength.$$$$$$$$$$$$$$$$$$$$$$$$$$$$
or$
Frequency$=$velocity$divided$by$wavelength$
$f$=$v/λ$
f=$340m/s$/$(.10m$x$4)$$
f$=$340m/s$/$.40$m$=$850$Hertz$
$
