Wave motionEasy
Question
A wave represent by the equation y = a cos (kx - ωt) is superimposed with another wave to from a staionary wave such that point x = 0 is a node. The equation for the other wave is
Options
A.a sin (kx + ωt)
B.- a cos (kx - ωt)
C.- a cos (kx + ωt)
D.- a sin(kx - ωt)
Solution
For a stationary wave to form, two identical waves should travell in opposite directionn. Further at x = 0, resultant y (from both waves) should be zero at all instant.
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