Question

Select One Option Correct from the following : A wave disturbance in a medium is described by, $y(x, t) = 0.02 \cos (50\pi t + \pi/2) cos(10\pi x),$ where x and y are in metre and t is in second.
(A)A node occurs at x = 0.15 m
(B)An antinode occurs at x = 0.3 m
(C)The speed of wave is 5 m/s
(D)The wavelength of wave is 0.2 m

Answer 1

b option is correct I think

Answer 2

A is correct

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