Question

A longitudinal progressive wave is
given by the equation
Y = 5x10-2 sin (400t + x)m. Find the
wavelength in metre.​

Answer 1

Answer: 6.28 metres

Explanation:

See attachment

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Answer 2

Answer :

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Explanation:

y=Asin(ωt+kx)

y=5×10  

−2

sin(πt×400+πx)

Comparing, we get A=5×10  

−2

 and k=π

λ=  

k

2π

​  

 

λ=2 m