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A wave disturbance in a medium is described by `y(x, t) = 0.02 cos(50pit + (pi)/(2))cos(10pix)` where `x and y` are in meter and `t` is in second`A. A node occurs at x = 0.15 mB. An antinode occurs at `x -0.3 m`C. The speed of wave is `5 ms^(-1)`D. The wavelength is `0.2 m` |
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Answer» Correct Answer - A::B::C::D `(2pi)/(lamda)=10pi rArrlamda=0.2m` Node occurs at `x=(lamda)/(4),(3lamda)/(4), (5lamda)/(4)=0.05m` `0.15 m` Antinode occurs at `x=(lamda)/(2),lamda,3(lamda)/(2)`....= `0.1 m,0.2,0.3m` `v = (50 pi)/(10 pi) = 5 m//s` |
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