Game:

The Medium (2021)

Duration: 2:31

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If there are \( n \) number of waves moving in the medium represented by the wave functions
\[
y_{i}=f_{i}(x-v t) \text {, where } i=1,2,3, \cdots, n \text {, }
\]
then the resultant wave function describing the disturbance in the medium is
(a) \( y=\sum_{i=1}^{n} f_{i}(x-v t) \)
(b) \( y=f_{1}(x-v t)+f_{2}(x-v t)+\cdots+f_{n}(x-v t) \)
(c) \( y=f_{1}(x-v t)-f_{2}(x-v t)+f_{3}(x-v t) \)
\( -f_{4}(x-v t)+\cdots+(-1)^{n+1} f_{n}(x-v t) \)
(d) Both (a) and (b)
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