The diagram shows a snapshot of a progressive transverse wave propagating along a tensioned string at 120 m s−1120\text{ m s}^{-1}120 m s−1.
The amplitude of the wave is 2.5 mm2.5\text{ mm}2.5 mm and the frequency of oscillation is 150 Hz150\text{ Hz}150 Hz.
Which statement is correct?
The distance between KKK and NNN is 40 cm40\text{ cm}40 cm.
The phase difference between particles at KKK and MMM is π rad\pi\text{ rad}π rad.
The particle velocity at LLL is at its maximum value.
The particles at KKK and MMM vibrate in phase.