The tube has one end closed and is filled with water so that the air column inside has a length of 39.9 cm. A speaker with a constant frequency sound is on top of the tube and generates the second resonance (n = 3). Using the ECF you calculated in the previous question determine the wavelength (λ) of the speaker sound.

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Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.