A student does the experiment on finding the speed of sound using a resonance tube. He uses a resonance tube of diameter D and a tuning fork of frequency N. If the velocity of sound, at the room temperature is V, the first and second resonance lengths would equal, respectively.
(1) \(\frac{V}{4N}\) and \(\frac{3V}{4N}\)
(2) \((\frac{V}{4N}-0.3D)\) and \((\frac{3V}{4N}-0.3D)\)
(3) \((\frac{V}{4N}+0.3D)\) and \((\frac{3V}{4N}+0.3D)\)
(4) \((\frac{V}{4N}+0.3D)\) and \((\frac{3V}{4N}+0.9D)\)
