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A sinusoidal wave of wavelength \(7.5\)cm travels a distance of \(1.2\)cm along the x -direction in \(0.3\) sec . The cr…

Q1

A sinusoidal wave of wavelength \(7.5\)cm travels a distance of \(1.2\)cm along the x -direction in \(0.3\) sec . The crest P is at x = 0 at \(t=0\sec\) and maximum displacement of the wave is \(2\) cm . Which equation correctly represents this wave ?

[JEE Main 2025, 2 Apr (Shift 2)]

a

\(y=2\cos (0.83x-3.35t)\mathrm{cm}\)

b

\(\mathrm{y}=2\sin (0.83\mathrm{x}-3.5\mathrm{t})\mathrm{cm}\)

c

\(y=2\cos (3.35x-0.83t)\mathrm{cm}\)

d

\(y=2\cos (0.13x-0.5t)\mathrm{cm}\)

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