A wave is represented by the equation `y=(0.001mm)sin[(50s^-10t+(2.0m^-1)x]`

Options

A. the frequency `=25//piHz`
B. the amplitude `=0.01mm`
C. the wave velocity `=100m//s`
D. the wavelength `=2.0m`

Answer

A

Explanation

Compare the given equation with standard equation `y=rsin[(2pi)/(T)t+(2pi)/(lambda)x]`
`(2pi)/(T)=50` or `(1)/(T)=v=(50)/(2pi)=(25)/(pi)Hz`
`(2pi)/(lambda)=2` or `lambda=pi`
`upsilon=vlambda=(25//pi)xxpi=25ms^(-1)`