Question

A wave moves ar a constant speed along a stretched string.Mark the incorrect statement out of the following:
A. particle speed is constant and equal to the wave speed
B. particle speed is independent of amplitude of the periodic mmotion of the source.
C. particle speed is independent of frequency of periodic motion of the source
D. particle speed is dependent on tension and linear mass density the string

Answer 1

Correct Answer - a.,b.,c.,d.
`v_(p)=vxx dely//delx "for" y=A sin (omegat-kx)`,
`v_(p)=kvxxA cos(omegat-kx)=omega A cos(omegat-kx)`
i.e., it is varying
Also, `v_(p) prop omega` and `v_(p) omega A`