A wave of wavelength \( 2 m \) is reflected from a surface. If a no...

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A wave of wavelength \( 2 m \) is reflected from a surface. If a node is formed at \( 3 \mathrm{~m} \) from the surface, then at what
\( \mathrm{P} \) distance from the surface another node will be formed
[Odisha JEE 2011]
W
(a) \( 1 m \)
(b) \( 2 m \)
(c) \( 3 m \)
(d) \( 4 m \)
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