Question

what is a progressive wave.derive and equation for a plane progressive harmonic wave

Answer 1

progressive wave is a type of transverse wave . which can propagate easily in string .
durring propagation of a progressive wave , the particle of the medium perform SHM about their mean position , then the wave is known as plane progressive harmonic wave .
the general equation of plane progressive wave with initial phase is ----

y (x, t)=a sin (wt+_kx+_@)

where y (x, t) is displacement
a is amplitude
w is angular frequency or velocity
k is phase constant
@ initial phase