List of top Physics Questions on Wave characteristics asked in KEAM

The frequency of the periodic wave for the following figure is 


 

A wave along a string has the following equation $y = 0.05 \sin(28t - 2.0x)$ m (where $t$ is in seconds and $x$ is in meters). What are the amplitude, frequency and wavelength of the wave?
The phase velocity of a wave described by the equation $\psi = \psi_0 \sin (kx + \omega t + \frac{\pi}{2})$ is
A wave of frequency 500 Hz travels with a speed of 360 ms\(^{-1}\). The distance between two nearest points which are 60° out of phase is