The equation of progressive wave travelling a long positive direction of x axis having a amplitude of 0.04 m, frequency 440 Hz and wave velocity 330 m
The equation of progressive wave travelling a long positive direction of x axis having a amplitude of 0.04 m, frequency 440 Hz and wave velocity 330 m/s, is
A. `y = 0.04 sin 2pi (440t - (4x)/(3))`
B. `y = 0.04 cos 2pi (440t - (4x)/(3))`
C. `y = 0.04 sin 2pi (440t + (4x)/(3))`
D. `y = 0.04 cos 2pi (440t + (4x)/(3))`
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Correct Answer - A
`y = A sin (omegat -kx)`
`= 0.04 sin [2pi n - (2pi)/(4) x]`
`y = 0.04 sin 2pi [440t - (4)/(3)x]`
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