Answer to Question #307049 in Atomic and Nuclear Physics for Barik

Question #307049

A sinusoidal travelling wave in x-direction has amplitude of 15 π‘π‘š, wavelength of 40 π‘π‘š and the

frequency of 8 𝐻𝑧. The vertical displacement at π‘₯ = 0 and 𝑑 = 0 is 15 π‘π‘š. Find (i) Wave number (ii)

Time period (iii) Wave speed, and (iv) Angular frequency of wave.


1
Expert's answer
2022-03-07T10:19:17-0500

1.

k=2πλ=15.7 mβˆ’1,k=\frac{2\pi}{\lambda}=15.7~m^{-1},

2.

T=1Ξ½=0.13 s,T=\frac 1{\nu}=0 .13~s,

3.

v=λν=3.2 ms,v=\lambda\nu=3.2~\frac ms,

4.

Ο‰=2πν=50.3 rads.\omega=2\pi \nu=50.3~\frac{rad}s.


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