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An electromagnetic wave travels in \( x y \) plane making an angle \( \theta \) with \( x \)-axis. Then the equation of the wave is
[Odisha JEE 2012]
(a) \( E=E_{0} \sin (\omega t-k x \cos \theta-k y \sin \theta) \)
(b) \( E=E_{0} \sin (\omega t-k x \sin \theta-k y \cos \theta) \)
(c) \( E=E_{0} \sin (\omega t+k x \cos \theta+k y \sin \theta) \)
(d) \( E=E_{0} \sin (\omega t+k x \sin \theta+k y \cos \theta) \)
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