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EF17xx
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Homework Statement
The correct answer according to answer sheet is answer B.
Homework Equations
λn= 2L/n (both ends open)
λn = 4L/n (one end open one end closed)
c=λf
Speed of sound does not change. as it is still in air... (correct assumption? )
The Attempt at a Solution
f1= 500Hz
L = λ/2
f= v/2L
Tube cut in half means L/2 = λ/4
L(new)= λ/4
f= v/4L(new)
Lnew = L/2
Therefore
v/4(L/2) = f
f= v/2L
therefore f is still 500Hz
I am just wondering if my reasoning and assumptions are CORRECT could someone please confirm.