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dlthompson81
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Homework Statement
A standing wave is established in a string of length 150 cm fixed at both ends. The string vibrates in four segments when driven at 140 Hz.
Find the wavelength in meters.
Find the fundamental frequency.
Homework Equations
L = Nλ
v = fλ
The Attempt at a Solution
L = Nλ
1.5m = 2λ λ = 0.75m (This answer was correct)
v = fλ
v = 140(0.75) = 105
L = Nλ
1.5m = (1/2)λ λ = 3
v = fλ
105=f3 f = 35 Hz (This was wrong)
Where did I go wrong on this? Thanks for the help.