Question

the equation of a sound wave is y=0.0015 sin (62.4x+316t)find the wave length of the wave

Answer 1

Hey

Wave equation is
E=a sin(wt-bx)
a is amplitude
w is frequency in rad.
b is phase constant.
x is propogation direction.
Now compare here 
b=62.4=(2*pi)/wavelength

 Wavelength=0.100 mt.

i hope its help you
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