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A wave disturbance in a medium is descri...

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 metre and t is in second . Which of the following is correct ?

A

A node occurs at x = 0.15 m

B

An antinode occurs x = 0.3 m

C

The speed wave is `5 ms^(1)`

D

The wavelength is 0.3 m

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