The equation of progressive wave in a wire is given by y=0.15sin[2π(15t−x10)]
Where the distance is in meters and time in seconds.
Determine i) amplitude, ii) frequency, iii) wavelength and iv) velocity of the wave
A
A=0.15m,f=150Hz,v=150m/s,λ=1m
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B
A=0.1m,f=15Hz,v=15m/s,λ=1m
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C
A=0.15m,f=15Hz,v=150m/s,λ=10m
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D
A=0.15m,f=30Hz,v=15m/s,λ=10m
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Solution
The correct option is CA=0.15m,f=15Hz,v=150m/s,λ=10m y=0.15sin[2π(15t−x10)]=0.15sin[30π(t−x150)]
Comparing with standard wave equation y=Asin[ω(t−xv)], we get A=0.15m,f=ω2π=30π2π=15Hz,v=150m/s,λ=vf=10m