What will be the wave velocity,if the radar gives $54$ waves per minute and the wavelength of the given wave is $10\, m$?

The graph between wave number $(\bar \nu)$ and angular frequency $(\omega)$ is

Consider the snapshot of a wave traveling in the positive $x$-direction.

$A$ traveling wave is described by the equation $y(x,t) = [0.05 \sin(8x - 4t)] \text{ m}$. The velocity of the wave is (All the quantities are in $SI$ units). (in $\text{ m/s}$)

The speed of a wave in a medium is $960 \, m/s$. If $3600$ waves pass through a point in the medium in $1 \, minute$,what is the wavelength of the wave in $meters$?

The frequency of the sinusoidal wave $y = 0.40\cos(2000t + 0.80x)$ is