The displacement of particles in a string stretched in the x-direction is represented by y. Among the following expressions for y, those describing wave motion are

Question

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k² ‚âà√¨‚àö¬¢²-‚âà√¨‚àö¬¢² t²

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coskxsin‚âà√¨‚àö¬¢t

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k2 ‚âà√¨‚àö¬¢2-‚âà√¨‚àö¬¢2 t2

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cos2 (kx+‚âà√¨‚àö¬¢t)

TuteeHUB · Answer

cos2 (k2 x2-‚âà√¨‚àö¬¢2 t2)

1.	The displacement of particles in a string stretched in the x-direction is represented by y. Among the following expressions for y, those describing wave motion are
A.	coskxsin‚âà√¨‚àö¬¢t
B.	k<sup>2</sup> ‚âà√¨‚àö¬¢<sup>2</sup>-‚âà√¨‚àö¬¢<sup>2</sup> t<sup>2</sup>
C.	cos<sup>2</sup> (kx+‚âà√¨‚àö¬¢t)
D.	cos<sup>2</sup> (k<sup>2</sup> x<sup>2</sup>-‚âà√¨‚àö¬¢<sup>2</sup> t<sup>2</sup>)
Answer» B. k<sup>2</sup> ‚âà√¨‚àö¬¢<sup>2</sup>-‚âà√¨‚àö¬¢<sup>2</sup> t<sup>2</sup>

The displacement of particles in a string stretched in the x-direction is represented by y. Among the following expressions for y, those describing wave motion are

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