a simple harmonic progresive wave travel along a string .the time for partical of a string to move from maximum displacement to 0 is 0 .4 second what are the period and frequency of the wave? if the wavelength is 0.2 what is the waves speed?
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Answer:
The equation of the wave form y=Asin(ωt−kx) has wavelength of value
λ=
k
2π
=
3
2π
Distance between two points having phase difference ϕ=x
2
−x
1
=
2π
λ
×ϕ
=
2π
2π/3
×
3
π
m=
9
π
m
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