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Which of the following functions represent stationary wave. Where a,b,c are constants
a) y = a cos(bx) sin(ct)
b) y = a sin (bx) cos (ct)
c) y = a sin (bx + ct)
d) y = a sin (bx + ct) + a sin (bx - ct)

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a & b

a,b & c

b,c &d

a,b & d

answer is D.

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Detailed Solution

y = a sin (bx + ct)

This is equation of progressive wave. Rest all equations represents stationary wave.

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