Find the frequency of the sound wave in the tube of the length L = 1m, if it’s both ends are (a) open; (b) closed, (c) one end is opened and another end is closed. The speed of sound v =340 m/s.
Length of tube L=1m
(a) When Both ends are open-
"f=\\dfrac{v}{2l}=\\dfrac{340}{2(1)}=170 Hz"
(b) when Both ends are closed-
"f=\\dfrac{v}{4l}=\\dfrac{340}{4(1)}=85Hz"
(c) When one end is open and one is closed-
"f=\\dfrac{3v}{4l}=\\dfrac{3\\times 340}{4(1)}=255 Hz"
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