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JAMB - Physics (1993 - No. 14)

The relationship between L and the wavelength I of the stationary wave is
2L = \(\lambda\)
L = \(\lambda\)
L = \(\frac {\lambda}{3}\)
4L = 3 \(\lambda\)

解释

L = - \(\lambda\) \(\Rightarrow\)4L = 3 \(\lambda\)

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