The displacement of particles in a string stretched in the x -direction is represented by…
Physics · JEE Advanced · NTA Exams — Oscillations and Waves
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
- cos kx sinwt
- k2x2 – w2t2
- cos2 (kx + wt)
- cos (k2x2 – w2t2)
Answer
(C) cos2 ( kx + w t )
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